Well considering the term realistic has various meanings and not a concrete black and white of "does it exist or not?" Perhaps you should look to those, like for example one thing of being cool is drivability of cars especially among there class. Now there is a very limited number of road cars you could realistically drive.
In a real world setting, I don't know what is cool at all about an F1 car. I don't see how a car that lasts for 2000-3000 miles before going bust, needs a full on crew to start and maintain, has to have you have massively dedicated training to actually drive, and can only be driven in specialized areas,etc...is some how cool.