Starting a new car company can be an expensive endeavor. The cost to start a car company can range from $300 million to over a billion dollars, depending on the strategy adopted. This includes the cost of developing and producing a prototype, building a manufacturing facility, hiring employees, and marketing the brand and its products. The cost of manufacturing a single car can also vary widely, with estimates ranging from $27,000 to over $1 million, depending on the type of vehicle and the materials used. It is important to conduct thorough market research and develop a solid business plan before starting a new car company, as the automotive industry is highly competitive and requires significant investment.