There are several platforms available for designing a car, both paid and free. Some of the best car design software include Blender, Adobe Illustrator, Fusion 360, Rhino 3D, and Autodesk Alias. Blender is a powerful open-source software that is great for beginners and freelancers, while Adobe Illustrator is ideal for creating detailed sketches and designs. Fusion 360 is a popular choice for 3D modeling, and Rhino 3D is best suited for Mac users. Autodesk Alias is a top-quality software used by professionals in the industry, such as Aston Martin. Other notable car design apps and software include Auto CAD Revit LT, 3D Car Design Pro, and 3DTuning. Ultimately, the best platform for designing a car will depend on your specific needs and skill level.