V8s are Touring Cars Paul.
But yes, maybe its time for a different class of Touring Cars. One that is based more on production cars, so teams have the opportunity to approach more manufacturers and ability to get sponsors from outside the current fold.
Be interesting to see ppl trying to run STIs up against FPV Falcons, 350Z with Mazda running the RX8 with a dah of Evo and HSV in the mix. Hang on, dont we already have just about that? Imagine the racing, instead of season to season dominance from a team, it would be race to race depending on the character of the track (Not street course)
But here is the thing. The old Grp A cars looked great, sounded great, but the racing was pretty bad. Equality amongst manufacturers was always beign debated and some cars are simply better then others.