AI bought an 08 with 5000 miles on it. It has Z-51, dual mode and 6 speed manual. Performance is outstanding, dual mode is fun. Z-51 suspension is on the stiff side. It is OK in states with smooth roads, but would be bothersome in northern climates with cracked pavement. Overall a well built car so far.
Dual mode exhaust is cool. I have dual tops and like the ability to change when I want to. The Bose stereo is decent for a Vette and the 6 speed has nice short throws. I like the XM radio a lot.
Lighten up the spring rates on the Z-51 a bit. My tops have the creaking latch issue which I will have the dealer fix. Not OK on a body that has been in production since 05.