There's more to a car than how it performs. Corvettes v. Vipers is a perfect example. Generally speaking the base Viper kicks the shit out of the base Corvette. I think you could even argue that as rudimentary as Vipers are, they are considered more exotic than Corvettes because they aren't seen as much. Doesn't matter, the American Dream is still a Corvette.
I feel the same way about Porsches and Ferraris. Some Porsches outrun Ferraris but more people are going to stop and stare when they see a Testarossa than any other Porsche.
I like Porsches, but I'll take any Ferrari over any Porsche any day, simply for the WOW factor.