Its like anything else you put money into what you like. The only thing about high performance is that no matter how much money you throw at it. It will never be one thing (At least in the USA) and that is legal to use on the street. Eventually if caught enough times you loose your license to drive.
Car puters do not have that problem. the vehicle just gets cooler and more pimp with every dime. Now add to that a sound system that can shatter the windows of the cars around you and your profiling status goes wayyyyy up.
Yea it's nice to have a car with obscene muscle under the hood. But all that gets you is a go to jail and do not collect 200 dollars card. Unless of course you do all of your playing on the track.
Any way I've got a Kawasaki 900R to go insane speeds with. Enough accelleration to leave you with inverted eyeballs.