I'm a C5Z owner and like it for it's menace yet understated narrow-aero. I like the C7Z and Viper ACR as track cars out to dominate and will own them too someday. What really stood above the rest (Audi/Porsche/Jag/Aston) was the LFA. Like my C5Z's weird Japanese half-brother. Understated, stiletto, surgical....an aero-dedicated driving device in monochromatic white.