I race with people that have Extremely modified chassis 1967 -1992 only alittle slower than the 996 or the 997 Cup. What I've seen is a very light chassis a RSR suspension of that era, 13'' rear bias ply slicks 11'' inch front tires stuffed under a Getty FRP RSR body. Tha camber is not steep maybe 2.25 neg rear 1.75 front.
The motors are 3.4 -3.8 making any where from 310-400 hp N.A. Here are some pics a 1976 RSR GT3 class and a 1992 GTL RSR clone race car. They have copied Porsche's ideas in the garage.
