Your best concept so far 
I'd add some more details to the rear bumper, because right now it looks odd.

Want to see you car in rFactor? PM me.
Them WIPS (linkage soon):
Toyota Starlet Glanza V | Volkswagen Corrado G60 | Nissan Laurel Medalist Club L (C33)
Nissan Stagea RS-Four | UMM Alter Turbo | Tommy Kaira ZZ-S
|