The original Production Supercar class came to a close in the early 80’s and then was resurrected again in the late 80’s by a few enthusiasts looking for somewhere to race their musclecars, there was no association with the earlier class just an adoption of the name as people were familiar with it, although not many (if any) cars raced in both eras, although some of the cars that raced in the NZ production classes, post “Production Supercars”, joined the second version eg. Veen Smiths SS Commodore (one of the NZ specials and currently being restored). Tim Buxton in the ex Leo Leonard XD (which ultimately got converted to a Sports Sedan as Steve pointed out and the Midgely brothers in the ex Pinepac XE Falcon (which unfortunately got stolen some years later).