Hi there! Obviously it will be in french language, sorry if any inconvenient. Are you looking for a particular car/team or driver? As you say all started in mid seventies, may be '76 the cars being very close to Grp1 FIA specifications. Then it moved to Production and Superproduction. In short words, the regulations went from road going cars to silhouettes!
https://fr-fr.facebook.com/Championn...esAnnees70A90/
https://www.facebook.com/groups/739938072690020/
https://www.facebook.com/lesgha/vide...5836664249114/
https://www.youtube.com/watch?v=Zga3FtdNKNs
https://www.facebook.com/lesgha/vide...8925455812394/
https://www.youtube.com/watch?v=IUnwSsASlu4
https://www.youtube.com/watch?v=GiNgKixS1Gg
Mind you that NOSCAR has absolutely nothing to see with NASCAR, it was a kind of "club" created for the drivers and temas to express themselves…