Hi,
I think I can give you a good opinion of both since I owned them.
- 5th gen Camaro ZL1. A great looking muscle car, better looking than the 6th gen Camaro SS, way better rear seat space, the 6th gen rear seat is useless for adults. Very strong 580 hp SC engine but heavy. I compared it to a C7 Corvette Z51 460 HP both felt similarly fast because the Stingray was lighter and more aerodinamic. Very rare to see a ZL1 in the street, base Camaros are everywhere. The ZL1 was an attention getter, even people asked me to open the hood to see the engine.
-6th gen Camaro, the best designed generation, very light and a great handling car because of its Alpha chassis. If you like the driving of a BMW M sport car, you will love the 6th gen Camaro SS, very common to see them in the street, unless is a ZL1 or SS1LE. For looks, strong powertrain, better rear seat, and resale value: the 5th gen ZL1.
For a very well-balanced sport car: the 6th gen Camaro.
