After a few folk have pointed out errors I’ve done a bit more digging, also reformatted the tables to split between Production and racecars.
variants_prod This covers the RS , Touring and N/GT together with the 3.8 RS and the RS America
variants_race This covers the Cup cars 3.8 RSR and the C4 Lightweight
Hopefully it’s more accurate and provides a bit more information – to be honest it’s still work in progress, the more I find the more gaps there seem to be!
Please, if there are still errors or omissions get in touch.