Women are from Maserati, men are from Lamborghini. At least, that's what science tells us:

To test the theory that high-performance cars get people hot, Moxon had 40 men and women listen to recordings of the three Italian exotics and a Volkswagen Polo. Everyone had significantly more testosterone after hearing the exotics, and all of the women were turned on by the Maserati. The guys, on the other hand, were drawn to the Lamborghini... As for the Polo? Everyone had less testosterone after listening to it.

The effect could simply be related to Italian cars vs. German cars, of course, rather than the high-performance engines. No word on how Porsches would stack up against Grecavs. Clearly more research needs to be done. Note that the Wired blog post is entitled "Science Proves Exotic Cars Turn Women On," but the study indicates that men are turned on as well. A fast car is equal-opportunity sexy.