Each of these carry the ZR-1 build code on their rear plates. The casting is another Hot Wheels "scope" on GM as it is a 'mule' car for testing the upcoming ZR1 production run. They ended up only building the coupes and cutting the convertible model. These are the 3 versions of the same casting issued under the Revealers banned in 1993. This series evolved into what we call the Mystery cars today - first in the black blister and now in the pillow packs. IIRC the came in water soluble wrappers that dissappeared when soaked in a water bath. It was easier to just unwrap them was the word back then. :thumbsup:
1993 Hot Wheels #7670 Revealers Custom Corvette