I just downloaded the new issue of Car and Driver. The 08 vette has a few upgrades over the 05 to 07 models (outside of the smaller wheel introduced in 06)
6.0 bumped up to 6.2 Liters 400 up to 436 hp with the optional and loud sport exhaust. Utilizes the butterfly valves from the Z06.
A new steering rack milled to tighter tolerences and bearings on the roller element dramaticaly improve steering response.
New leather interior upgrade option folded into the 4LT equipment upgrade includes new stereo and some other useless stuff.
and new wheels too.
0-60 mph 4.0 seconds
1/4 mile 12.4 seconds @ 116 mph
Top speed 190 mph
price $56,890 (as tested)