FIA International GT Championship (GT1, GT2, GT3 &/Or GT4)!!
Can't we just replace NASCAR with this?
Stock Car Brasil (Copa Nextel). I'll love to drive those Astras and 207 from this series, and i'll fall in love if the Street Circuit of Salvador is in GT5 (just dreaming, never will happen).
I'm surprised nobody has nominated Grand Am, it reminds me of the old Group C touring car days.
World Sportscar Championship 1982-1992 group c era