Any car that looks evil in the back at night like an SL, SLK (Old one<A BORDER="0" HREF="http://www.supercars.net/emoticons.html"><IMG BORDER="0" SRC="http://speed.supercars.net/pitlane/emoticons/smile.gif"></A>), 5 series.
the worst @$$=Zonda Coolest @$$=Ferrari 456 and i like murcielago's @$$ but it doesn't match with the front
honorable mentions: 993 GT2 murcielago btw, carrera gt front is wayy better than ass...especially that rising wing...
saleen s7, xj220, ford GT, Murci, F40, Mustang Cobra R and new 05 models there are much more but i cant think at this time