I think he pretty much answered everything.
If you plan on keeping the car for a while and do not intend on racing it why not go the luxury route? The Japanese VIP (pronounced like whip) trend applied to a 4-door gp would be kinda cool. Well maybe not the VIP style but go classy.VIPStyleCars.com - Content - Articles - My thoughts on VIP Style Cars http://ls400.wordpress.com/what-is-vip-style/While some purists might say American cars like this can never be "VIP", the fact that a Chysler 300C has been seen on the cover of VIPStyle magazine in Japan is a strong counterpoint to that statement.
you wouldnt have to go as far as a body kit or air ride but make it classy. Gotti style. Nice wood trim.No color schemes or colored wire loom or painted plastics on the inside. Put some lowering springs and some wide lipped wheels on it and call it done on the exterior.