I would imagine Rez has a tuned car of some sort to be running a 3.6, the SRT10 is a full second slower.
Only factory cars I can think of that run 3.6s are 911 turbos, GT-Rs, Zr1, LP560-4, Scuderia, etc. All super cars.
Only factory cars I can think of that run 3.6s are 911 turbos, GT-Rs, Zr1, LP560-4, Scuderia, etc. All super cars.