If you put a 1990 ZR-1 Corvette next to a regular C4 Corvette, you would be hard-pressed to see the difference, even with the wider rear quarters. Sure, the ZR1 had unique taillights, but maybe ...

The C4 ZR-1 had a wider rear with a convex fascia ... the C4 ZR-1 and new technology to the Active Handling of the C5 Corvette and the now-familiar magnetorheological suspension, which is still ...