Actually, the degree of government regulation imposed on car designers in all countries - particularly when it comes to pedestrian protection standards - imposes a degree of homogenization on today's cars that is unprecedented. Some low volume manufacturers may be able to get exemptions from some of the more onerous restrictions, but in most cases, all big trucks, all sedans, all coupes, all minivans and all SUV's look pretty much the same.
Here are two cars. Which one would you rather have?