I came from a G8 GXP (and a GTO before that). The Camaro feels lighter and more nimble. Even though technically the weight is the same, the suspension rides a lot better. Ridewise, the G8 was a step up from the GTO, and I think the Camaro is another step up from the G8.
The "Heretic": '11 2SS/RS L99 A6 Black/Inferno. Build Journal, Videos
D1SC GT9 JBA-LT = 720/680 | 10.330 @ 133.61, 1.546 sixty... Camaro King at ECS V, Darlington.