Why isn't there a racing game that allows you to completely design your own prototype car?

Question

It would just be designing the chasis, body, body material, chosing the specs of the engine and having it automatically create it from your criteria, suspension, wheels, interior, wings and paint job, etc. I don't have the progress of the game all thought out. And I know it's not original. It just hasn't been done for the console games systems. (or hasn't been done at all I think) There is one on Xbox (I forgot the name) but it just allows you to choose from a blueprint, not design completely. How about Need for Speed: Prototypes. Just kidding.

Answer 1

The program would be huge, the time to add in all the veriables. As well as you would have to add in every concevable veriable. It would cost way to much money and it wouldnt be able to fit on one cd. Now if they designed a xbox (or whatever ) to just do the one game of creating you own car it could be done that way but then it limits the xbox. So the answer is : it wouldn't be cost effective