My $0.02


S2k - Not awful...notice the crossfire strakes on the fenders.
9ff GT9-R - Not bad, an obvious race car.
Tetsu GTR (Bentley Continental) - gross
Boulevard Customs (GLK) - gross
Brabus Rocket ('12 CLS63) - delicious
Callaway Speedster - meh, leaning towards gross
Carlsson C25 - Not a fan of the paint scheme, but the body work looks decent.
Chameleon Typhoon - Hair band gross
Chrolet Newmad - This looks like a hot wheels car, but I like it.
Fab Design S60 BT - gross
G-Power Typhoon - meh, leaning towards gross
Geiger Hummer - gag me
Gembella Tornado - meh, leaning toward ok
Hamann Volcano (MB SLR) - gross
Hennessey Venom GT - AMAZING!
Jankel Tempest - boo. Waste of a C4 corvette
Mansory SLR - gold? really? gross
MTM TT Bimoto - I like it, obvious race car
Ruf CTR3 - Good looking
Techart Magnum - meh

Overall, mostly gross...with the Venom GT being the one car that really didn't belong with those other ugly creations. The Venom GT is an amazing car.