I have both a Boxster and a Pontiac Firebird (V8 350). Quite frankly, they are two different beasts. The American muscle car is all about raw power. Harsh off the line and slams your head back. A lot of torque in that huge V8.
The Boxster is like power with finesse. A refined power that doesn't waste power spinning the tires. I get up to speed just as quick and much more nimble in the Boxster.
I definately think that the convertible makes the muscle car crowd think that it is a woman's car. And that V8 engine makes the exotic car crowd think that its making up male pattern baldness and for a small .... appendage.
I say we get together and make fun of the guy in a Dodge Neon with the bolt on funny car spoiler and a radio system that treatens to shake all the panels off of the car.
(And if you have that Neon... Sorry... not for the comment, just the car)