Without a doubt.......the Porshe GT1 from 1998 is just as sexy as can be. Even looking at scale models(pictures of the car are hard to find for some reason...) makes my mouth water. It has the smoothness and sleakness of a sexy GT car......put the stance and presence of a proto...
http://www.automotiveforums.com/scal...e/porsche.html
After that, I would say...
Audi R8C
Toyota GT1
McLaren F1 shortail
Mazda RX-792P
Many more, I just cant name them all.