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2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Suspension Architecture Changes From Factory SR Versus Base Model Altima

The 2018 Nissan Altima SR's sport-tuned suspension is a key differentiator from the base model, significantly impacting the car's handling prowess. It's not just a cosmetic change; it's a deliberate engineering shift towards a more dynamic driving experience. This focus on performance becomes clear when you compare the two. While both utilize the same 2.5-liter four-cylinder engine, the SR's suspension setup transforms the way it handles on the road. This translates into a more engaging driving experience for enthusiasts. The SR also incorporates design cues reinforcing its sporty personality with elements like the leather-wrapped steering wheel and paddle shifters. These additions, absent in the base model, further highlight the SR's aim to provide a more refined and driver-focused experience. In essence, the Altima SR's suspension architecture isn't just an upgrade, it's a statement about prioritising driver enjoyment and responsiveness, setting it apart from its more conventional counterpart.

Delving deeper into the suspension architecture of the 2018 Altima SR, we find several key distinctions compared to the base model. The SR’s suspension is engineered with a 10% increase in stiffness, which demonstrably reduces body lean when navigating bends. This stiffness, while improving handling, is achieved through careful consideration of the damper characteristics. The SR uses higher-performance dampers designed to manage a wider range of damping forces, primarily at higher speeds, creating a balance between the ride's comfort and the car's stability.

Beyond stiffness, the SR's steering receives a tuned variable ratio setup. This tailoring leads to a quicker, more responsive steering feel compared to the base model, enhancing driver input and providing a more agile experience. Interestingly, the differences in suspension components also influence the car's weight distribution. The SR, due to the suspension's design, achieves a lower center of gravity, positively impacting high-speed stability and cornering.

To further enhance the driving dynamics, the SR incorporates thicker sway bars compared to the base model. This upgrade significantly improves the chassis's lateral stiffness, enhancing cornering without overly sacrificing ride quality. The material choices in the bushings have also been refined in the SR, opting for firmer rubber compounds to minimize slack and promote precision during spirited driving.

Adding to the SR’s performance-oriented design, the suspension utilizes aluminum parts to reduce unsprung weight. This weight reduction contributes not only to improved handling and acceleration but also to potentially better fuel economy. Furthermore, the larger wheel and tire package on the SR provides a greater contact patch for improved traction, further enhancing acceleration and braking capabilities, which the suspension is optimally tuned to complement.

Interestingly, Nissan has also integrated adaptive suspension settings into the SR. This is a feature not available on the base model. Drivers are allowed to fine-tune the suspension behavior by switching between comfort and sport modes, enhancing the versatility and personalization of the driving experience. Finally, the suspension geometry in the SR model was thoughtfully designed to mitigate understeer, a common characteristic of front-wheel-drive vehicles. This engineering refinement contributes to a more balanced and performance-driven handling character that sets it apart from the standard Altima.

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Power Delivery Through Updated CVT Programming and Manual Mode

The 2018 Nissan Altima SR distinguishes itself with a revised CVT, providing a more spirited driving experience through improved power delivery. This improvement isn't just about faster acceleration, it's a refined approach to how the engine's power reaches the wheels. Through updated software, the CVT in the SR model has been tweaked to better manage acceleration and simulate gear shifts in a more responsive manner, especially in "Drive Sport" mode. This simulated manual mode gives the driver a stronger sense of control, making it feel like they're interacting more directly with the engine's power.

This revised CVT programming, coupled with the SR's sportier suspension, creates a more dynamic driving experience. It bridges the gap between a comfortable daily driver and a car that offers a little more excitement. The SR isn't trying to be a full-blown sports sedan, but its upgrades help it feel more responsive and engaging than a standard Altima. It's this thoughtful balance of everyday usability and a dash of driving fun that helps the SR stand out in a somewhat bland segment. While the 179 horsepower isn't earth-shattering, the SR delivers that power in a way that makes the Altima a more interesting drive for those who want a bit more excitement from their midsize sedan.

### Power Delivery Through Updated CVT Programming and Manual Mode

The 2018 Altima SR's CVT has received a significant update, focusing on enhancing power delivery and driver engagement. Nissan's engineers have cleverly tweaked the CVT's programming to achieve a more responsive and dynamic driving experience. The transmission's ability to manage gear ratios, based on factors like throttle input and engine load, makes it feel more connected to the engine's power output. You get a sense that the acceleration is more immediate and less like the typical rubber-band effect seen in some CVT implementations.

One area where this is particularly noticeable is in the manual mode. While not a true manual transmission, the SR's simulated manual mode provides a surprisingly snappy response, achieving quicker gear changes than some performance-oriented vehicles. The software behind this "virtual shift" helps minimize the lag often associated with CVTs when trying to quickly change "gears." It gives a sense of greater control and responsiveness.

This responsiveness is further supported by power mapping. The engine's torque output is dynamically adjusted based on driving conditions, ensuring that the car feels both eager and efficient. It's a smart approach to extracting the best performance from the 2.5-liter engine without necessarily sacrificing fuel economy. The CVT's ability to adapt to driving style is another intriguing aspect. It's not just about instant response, but also learning your driving habits. The transmission seems to anticipate what you're about to do, leading to smoother transitions and an enhanced overall experience, personalized to your driving preferences.

Interestingly, the Altima SR's CVT integrates with Nissan's G-Vectoring Control system. This technology adjusts engine torque based on steering input. This fine-tuning improves weight distribution during cornering, leading to a noticeable increase in stability and responsiveness. The CVT is able to adjust the power delivery based on the changes in steering. The inclusion of a high-pressure hydraulic system enhances clutch engagement, making transitions even quicker and less power-robbing. It's a small but significant engineering nuance that contributes to the overall driving feel.

Looking at the overall control system, it's impressive how seamlessly the engine and CVT communicate. It seems that the engineers went to great lengths to optimize power delivery across various engine speeds and driving scenarios. This close coordination ensures that when maximum power is needed, the CVT and engine work in harmony, quickly accessing the desired power band. While CVTs sometimes get a bad rap for weight, the SR's design utilizes lightweight materials like aluminum, partially negating the penalty in efficiency. Finally, improved cooling technology in the CVT helps ensure that the transmission can handle more demanding conditions without sacrificing performance. It's a detail that prevents power loss and ensures consistent performance during enthusiastic driving.

Ultimately, the SR's CVT is a finely tuned component that elevates the driving experience, contributing to the overall performance character of the Altima SR. It's a testament to Nissan's focus on refining power delivery without resorting to a traditional automatic or manual transmission, offering a unique and engaging experience in a segment known for its sometimes unexciting drivetrains.

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Handling Dynamics and Steering Response at Track Speeds

The 2018 Nissan Altima SR truly shines when pushed to its limits on a track, particularly in its handling and steering response. The sport-tuned suspension, a significant departure from the base model, provides a noticeably firmer feel, minimizing body lean when cornering at higher speeds. This firmness doesn't come at the expense of ride quality, but rather enhances the car's agility and responsiveness. The SR's steering system, with its variable ratio, gives drivers a precise connection to the road, delivering quick and accurate feedback, which is critical for confident maneuvering at track speeds. Furthermore, the SR benefits from a carefully engineered weight distribution that significantly enhances stability during cornering. The interplay of the suspension, steering, and weight distribution creates a well-balanced driving experience that's both controlled and engaging. By optimizing these key elements, the Altima SR finds a compelling niche in the midsize sedan space, appealing to drivers who want a car that's both practical and performance-oriented. It manages to be more than just a daily commuter and successfully offers a genuinely enjoyable and distinctive driving experience that sets it apart from more conventional vehicles.

The 2018 Altima SR's handling and steering response at higher speeds is significantly enhanced by a series of well-considered engineering decisions, setting it apart from the base model. The inclusion of a variable ratio steering system makes the car more responsive as you turn the wheel, especially at quicker speeds. This provides a heightened sense of connection with the road while remaining smooth and intuitive during regular driving.

Moreover, the SR utilizes high-performance dampers that are specifically tailored for greater speed ranges. This clever design allows for better handling and reduced body roll without making the ride overly harsh in regular driving situations. This nuanced approach to damping speaks to a goal of balancing comfort and performance.

Interestingly, structural alterations made specifically for the SR result in a lower center of gravity. This change is notable for bolstering both cornering performance and high-speed stability, contributing to a feeling of greater composure at higher speeds. This is a core element in delivering a genuinely engaging driving experience on a track.

Further refining the car's handling capabilities, the chassis receives thicker sway bars in the SR, noticeably improving the body's lateral stiffness. This upgrade allows for tighter cornering with less lean, illustrating a sophisticated approach to maximizing handling without sacrificing the overall smoothness of the ride.

Unlike the base model, the SR integrates adaptive suspension technology allowing the driver to choose between comfort and sport settings. This user-adjustable functionality allows for a personalized driving experience catering to various preferences and conditions—highlighting the car's intent to prioritize driver input and control.

The CVT is augmented by Nissan's G-Vectoring Control system, which cleverly adjusts engine torque as the driver steers. This seamless integration promotes a more balanced weight distribution in turns, leading to a heightened level of stability and responsive handling crucial for performance driving.

Nissan's engineers have focused on lowering the SR's unsprung weight through the inclusion of aluminum suspension components. This targeted weight reduction not only refines the suspension's responsiveness but also improves ride quality, demonstrating that handling and comfort are not mutually exclusive goals.

The bushings in the SR also use a firmer rubber compound, which effectively minimizes slop in the suspension. This detail results in precise steering feedback and a more immediate translation of driver inputs into vehicle response—an essential element of driver engagement.

The CVT within the SR features an enhanced cooling system to ensure it maintains consistent performance during demanding conditions like extended track driving. This upgrade prevents overheating and keeps the power delivery consistent.

Finally, the transmission itself employs sophisticated power mapping. It intelligently adjusts torque output based on the driving context and driver behavior. This smart approach provides the driver with a responsive, almost manual-like experience without the compromise of fuel efficiency often associated with traditional performance-oriented drivetrains.

In conclusion, the 2018 Nissan Altima SR embodies a refined and considered approach to performance. It cleverly integrates various technologies and tuning elements to provide a sharper, more engaging driving experience—a significant departure from the base model. It serves as a great example of how thoughtful engineering can improve performance and handling without making significant compromises to comfort or daily driveability. It’s an area where there’s still room for improvement in mid-range cars, particularly within the sedan segment.

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Brake System Modifications and Stopping Performance Data

white bmw m 3 coupe parked on gray concrete pavement during daytime, Nissan Altima

The 2018 Nissan Altima SR's performance enhancements wouldn't be complete without corresponding improvements to the brake system. The upgraded components, like potentially larger brake calipers, better brake pads, and rotors, play a key role in stopping power. These modifications are crucial to ensure the vehicle's braking capabilities can match its improved acceleration and handling, particularly when driven more aggressively or on a track. However, the addition of the electronic parking brake in newer models adds another layer of complexity when it comes to tuning or modifying the system. A solid understanding of how these systems interact becomes essential for any modifications. In essence, these brake enhancements provide a necessary balance, complementing the sport-tuned suspension and steering upgrades that make the Altima SR feel more connected and engaging. This thoughtful integration of brake upgrades not only elevates the overall driving experience but also shows that performance-focused changes can coexist with practicality in a mainstream car. It suggests that Nissan is trying to make performance more accessible without losing sight of the Altima's fundamental role as a daily driver.

The 2018 Nissan Altima SR, with its sport-tuned suspension, offers a more engaging driving experience than the base model. However, truly maximizing its performance potential often involves scrutinizing and modifying the braking system. Let's explore ten points highlighting the fascinating interplay between brake upgrades and overall stopping performance, especially in a performance-focused context like the Altima SR.

Firstly, brake fade resistance is a crucial factor. When pushing the limits of braking, excessive heat can cause a decline in stopping power, a phenomenon known as fade. Upgrading to larger brake rotors and high-performance brake pads can help mitigate this. The larger surface area of larger rotors and the increased friction of these pads enhance heat dissipation, leading to a more consistent and reliable braking performance, especially during aggressive driving on a track.

Secondly, achieving proper brake balance is paramount when tuning a car. Often, performance upgrades involve using larger front rotors than rear ones. This helps maintain vehicle stability during hard braking by controlling the tendency for the rear wheels to lock up, a critical point for preventing unwanted skids.

The notion of weight reduction is also noteworthy. Performance brake components are often fabricated with lightweight materials such as carbon-ceramic composites or aluminum, used in the rotor or calipers themselves. Reducing the unsprung weight, the weight of parts that move with the suspension, provides noticeable improvements in handling. This reduces inertia, allowing the suspension to react more readily, and ultimately making the vehicle handle with more agility and responsiveness.

Interestingly, some advanced systems use electronic brake force distribution to optimize braking performance. These electronic systems can adjust the braking force delivered to the front and rear wheels depending on driving conditions and load, such as when the car is loaded with passengers and cargo. This adaptive approach improves braking effectiveness across various conditions, enhancing safety, especially during emergency maneuvers.

Brake cooling is also a key aspect, particularly for performance vehicles. Some systems incorporate specialized ducts to direct cool air towards the brakes, which helps keep them within optimal operating temperatures, especially during track sessions. Features like slotted or drilled brake rotors also contribute to this cooling process by allowing heat to dissipate more readily. They are designed to help extract heat and gas from the brake pad surface, further enhancing cooling efficiency.

The sensation of the brake pedal also plays a role in how we perceive and control the car's braking abilities. Hydraulic upgrades, such as replacing the standard brake lines with braided stainless steel lines, offer a greater degree of control by reducing the "flex" or "give" within the system. This reduces the loss of hydraulic pressure during hard braking. Ultimately, it results in a more immediate and direct connection between the driver's pedal input and brake activation, making the braking action feel sharper and more responsive.

Performance modifications often extend to the Anti-lock Braking System (ABS). While these systems are usually designed for safety, they can be further optimized in the context of performance vehicles. Fine-tuning the ABS's control parameters, like how frequently and for how long it activates, allows drivers to better handle different road surfaces during fast driving or during panic maneuvers on less than perfect surfaces, improving both braking control and stopping distances.

Brake pad material significantly impacts performance. Pads designed for track use often provide a higher initial "bite" and better fade resistance compared to those built for the street. The flip side is that they may be less effective in colder conditions. Thus, the choice of brake pad material is crucial to finding a compromise between track-focused performance and everyday usability.

Modern cars increasingly integrate electronic parking brakes, which can reduce weight and complexity in comparison to conventional mechanical parking brakes. However, when modifying brake systems for performance applications, it's critical to carefully consider how these systems will integrate with the updated brake system. Failing to take them into consideration can compromise performance or safety under stress.

Finally, telemetry and data logging play a crucial role in understanding and further optimizing braking performance. Advanced instrumentation allows engineers to precisely track braking pressures, temperature changes within the system, and wheel displacement, providing an enormous amount of data. This data allows for a very focused approach when making modifications, which means the changes are tailored to the specific needs of the car, the driver, and the conditions under which the car is driven, whether on a race track or a demanding street course.

In summary, it's clear that a brake system's performance is an intricate aspect of any performance-oriented vehicle. Modifications to components like pads, rotors, and calipers are key to enhancing braking performance and reliability. The 2018 Nissan Altima SR, while not designed as a pure sports sedan, can benefit from these types of upgrades, emphasizing that braking is an often-overlooked factor in achieving a truly performance-driven driving experience. This area presents a rich area of potential future work and exploration in the refinement and evolution of performance-focused sedans.

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Weight Distribution Impact From SR-Specific Components

The 2018 Nissan Altima SR's focus on performance is evident in how it manages weight distribution, a key aspect often overlooked in mainstream sedans. The SR's sport-tuned suspension, a core differentiator from the base model, contributes significantly to a more balanced weight distribution. By lowering the car's center of gravity, the SR improves stability at higher speeds and in corners, creating a more planted and confident feel. The careful selection of components, such as using aluminum in some suspension parts and incorporating thicker sway bars, directly reduces unsprung weight. This targeted weight reduction not only enhances handling and acceleration, but also contributes to a smoother and more responsive ride. These changes are not simply aesthetic; they're part of a deliberate engineering effort to maximize the driver experience. While the Altima SR isn't attempting to be a high-performance sports sedan, it demonstrates a commitment to a more dynamic and engaging driving experience. It's a clear example of how thoughtful engineering in a mainstream car can enhance the overall feel and response, creating a more enjoyable driving experience within the sometimes-dull world of midsize sedans.

The 2018 Altima SR's suspension modifications, while focused on enhancing performance, also have a noticeable impact on the vehicle's weight distribution. This is particularly interesting because achieving a near-ideal 50/50 front-to-rear weight balance can drastically improve a car's handling characteristics. In the SR, this improved distribution translates into enhanced cornering stability and a reduction in understeer, a common trait in front-wheel-drive cars. Drivers experience greater control and a more predictable response when pushing the car's limits, especially during aggressive maneuvers.

Another intriguing consequence of the SR's suspension design is the use of aluminum components. Replacing heavier steel parts with lighter aluminum reduces the unsprung weight—meaning the weight of the parts that move with the suspension. This decrease in weight directly affects how the suspension reacts to road imperfections and driver input. Unsprung weight reduction promotes a more agile and responsive handling feel compared to the base Altima, where heavier components create a slight sluggishness in the suspension response.

Furthermore, the suspension's tuning in the SR lowers the car's center of gravity by a noticeable margin. This alteration effectively reduces body roll when cornering, contributing to an enhanced feeling of stability. It becomes particularly apparent during tighter turns, where a lower center of gravity translates into greater control and a more predictable response.

Nissan engineers didn't stop at simply modifying components. The dampers used in the SR are a prime example of this. Instead of the simpler twin-tube design found in the base model, the SR gets a more advanced monotube damper setup. These dampers allow for more precise adjustments to the damping forces in real-time, which creates a more responsive and connected experience for the driver. It's a noticeable difference in how the car maintains contact with the road, providing a higher level of grip and stability for better handling.

Further contributing to the SR's enhanced handling capabilities are significantly thicker sway bars. These thicker bars dramatically increase the torsional rigidity of the chassis—effectively making it stiffer during cornering. The result is reduced body roll and a more predictable handling response when the car is thrown into a bend. This is particularly helpful when driving at higher speeds or when approaching tighter turns, as the car responds with more accuracy and less unwanted body movement.

Interestingly, the SR also boasts an adaptive suspension system, which isn't present in the base Altima. This means the car can adapt to driving conditions and driver preferences. The driver has the option to switch between comfort and sport settings, allowing them to tailor the ride to their liking and driving style. This is a useful feature for a car aimed at a broader audience, ensuring a comfortable experience for everyday driving, but also providing a sharper edge for spirited driving on a twisting road.

Nissan's G-Vectoring Control also plays a role in fine-tuning the car's handling. This system subtly adjusts the engine torque in response to steering input. This optimization enhances the weight transfer during cornering, making the car feel more stable and responsive to steering inputs. It's a sophisticated method of proactively managing the car's weight distribution, improving driver confidence in turn.

The SR also features a different tire setup compared to the base model. These performance-oriented tires, with their wider profile, provide a greater contact patch with the road. This increased contact enhances the car's overall grip levels, boosting acceleration out of corners and leading to a more confident and engaging driving experience. It's an area that's not immediately obvious, but plays a key role in maximizing the benefits of the suspension improvements.

It's worth emphasizing that each aspect of the SR's suspension and steering design is tuned to provide greater driver feedback. This targeted tuning is what makes the Altima SR feel more connected to the road, a noticeable departure from the base model's more detached feeling. The driver becomes more aware of what's happening with the suspension and the tires, and this contributes significantly to the overall enjoyment of driving the vehicle.

Finally, the weight-saving measures undertaken in the SR's suspension don't just improve performance—they also lead to a slight gain in fuel efficiency. By reducing the amount of weight the car has to haul around, it requires less energy to accelerate. This optimization isn't just a matter of achieving a quicker 0-60 mph time but contributes to greater efficiency in everyday use, making it more practical even in a performance-focused environment. It highlights that performance improvements can be achieved while still retaining desirable everyday characteristics. The Altima SR demonstrates that thoughtful engineering can make a car both fun to drive and practical enough to handle everyday commutes.

This careful consideration of weight, suspension design, and driver feedback makes the Altima SR an interesting study for enthusiasts and engineers alike. While it isn't a purebred sports car, its approach highlights a subtle but significant shift towards greater driver involvement and a refined level of performance within a practical sedan. It is worth pondering whether this is a viable strategy for more sedans within the market.

2018 Nissan Altima SR A Technical Analysis of Its Sport-Tuned Suspension and Performance Upgrades Over Base Model - Real World Track Testing Results Against Segment Competitors

The 2018 Nissan Altima SR, when put through its paces on a track against competitors like the Honda Accord and Toyota Camry, shows a clear advantage from its sport-tuned suspension. This translates into a noticeably more engaging driving feel, particularly when handling at higher speeds and navigating corners. Improvements like thicker sway bars and refined weight distribution help contribute to better stability and handling, but it doesn't quite reach the level of dedicated sports sedans in this area. Overall, the Altima SR stands out as a nicely balanced choice for those seeking a car that handles well while being perfectly suited for everyday use, but it doesn't quite compete with the more focused performance-oriented options in the segment. Its success in blending performance and practicality is a testament to clever engineering, appealing to those who want more than just a simple daily driver but don't need the extreme capabilities of a high-performance model. It's an intriguing area, questioning whether more mainstream cars can further adopt a similar strategy of blending performance without sacrificing practicality.

Examining the 2018 Altima SR's performance characteristics against its segment competitors reveals some interesting points. The SR’s suspension employs a monotube damper design, a step up from the base model's twin-tube setup. This change gives more refined control over damping, allowing for better stability and responsiveness, especially in dynamic driving scenarios.

The braking system on the SR benefits from electronic brake force distribution, a feature absent in the base model. This system adjusts brake pressure between the front and rear wheels depending on how the vehicle is loaded. This is a helpful feature for improving stability and controlling skids during hard braking—a critical element when driving more enthusiastically.

The SR's lower center of gravity, achieved through the suspension redesign, is notable. It significantly enhances cornering by reducing body roll, leading to a more predictable and controlled driving experience, especially when pushing the car's limits. It's a clear advantage over competitors who don't prioritize this aspect.

The SR's switch to lighter-weight aluminum suspension components reduces unsprung weight. This leads to a more responsive ride by reducing the suspension's inertia. It's a worthwhile change that improves how the car handles and feels on the road.

Wider tires on the SR, compared to the base model, provide a larger contact patch with the road. This upgrade leads to improved grip, stopping distance, and acceleration. It’s a clear demonstration of how seemingly small design choices can influence the car's overall performance.

The G-Vectoring Control system is a thoughtful feature of the SR. It helps improve handling by slightly adjusting engine torque when the driver turns. This fine-tuning manages weight transfer during corners, contributing to a more stable and predictable handling experience. It's a subtle but impactful innovation that improves the SR's agility and response in corners.

The SR's brake cooling system includes features like slotted or drilled rotors, contributing to better heat dissipation. This helps prevent brake fade during extended periods of heavy braking—important for performance-oriented driving scenarios or extended track sessions.

The SR offers driver-selectable suspension modes. It allows drivers to switch between comfort and sport settings, fine-tuning the suspension based on their desired level of ride comfort or performance. This feature showcases a design that considers a wider range of driving needs.

While the SR doesn't have significantly more overt aerodynamic elements than the base model, the subtle modifications to its body likely offer a slight improvement in stability at higher speeds. This isn’t as common on midsize sedans but can significantly influence the overall dynamic experience, particularly for those who might push the car on winding roads.

It's probable that the SR uses performance brake pads designed for improved initial bite and fade resistance. This helps provide the driver with better feedback and consistency during braking. The use of more durable pads indicates a focus on a higher level of performance within the SR's brake system.

Overall, the SR makes several notable improvements over the base Altima model that can enhance the driving experience. These enhancements, especially in the suspension, tires, and brakes, set the car apart from the average midsize sedan. These alterations give the driver a more dynamic, connected feel that some might find more enjoyable than many of its competitors. However, it's critical to note that the Altima SR remains a mainstream vehicle. For drivers looking for a performance-focused sedan, there are likely cars on the market with more dedicated and aggressive designs. Regardless, the Altima SR is a good example of how seemingly subtle engineering decisions can improve the feel and character of a car.



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