After 1972, the ZR1 tag vanished until Chevrolet had a Corvette worthy of the badge. That ended up being 1990, with the C4 Corvette. We have to give Chevrolet credit here, since it would have been ...
The C3 ZR-1 hid its fancy bits inside and was indistinguishable from the regular Stingray. The C4 ZR-1 had a wider rear with a convex fascia, rounded square taillights, rectangular exhaust tips ...