Compare the Pontiac Tempest GT-37 6.6 V8 - [1971] vs Chevrolet Corvette C3 Stingray ZR-1 - [1972]. Find out which car is the fastest, most powerful, lightest or has the biggest engine in our top trumps style comparison page. Find out which car has the highest top speed or is the fastest accelerating, is it the Pontiac Tempest GT-37 6.6 V8 or the Chevrolet Corvette C3 Stingray ZR-1. We'll leave it up to you to decide which is your favourite.