Originally Posted by BeQuietAndDrive
I wouldn't necessarily go that far. What about the WRX, Lan Evo, M3/M5?
I don't think that just because a car is based off of a sedan platform means it won't handle well.
They do handle well, "for a sedan."
The WRX and EVO especially, are well done versions of econoboxes. Sure they can put down numbers, but they just won't EVER have the pure design intentions of a more purpose built sportscar. They're still heavy, tall, and relatively narrow.
Same thing with a Civic, Mustang, etc.
My statement is that if you give an OEM manufacturer free reign to design a purpose built sports car that doesn't have to sell millions of copies, you'll NEVER end up with a WRX, M3, or Mustang.
These cars are VERY GOOD compromises, but they aren't fully oriented sportscars.
As more of a comparison, given all the same "mods" and an equal power to weight ratio, I think that a purpose built sportscar will be faster around a roadcourse than a sedan based car.