I found a few cars which can be usefull to replicate the GT1 cars:
Ford GT GT1 (GT'05, GT'06 or GT LM Spec II)
Nismo GT-R GT1 (GT-R'07, Spec V'09)
Aston Martin DBR9 (DB9 Coupe'03 or '06)
Chevrolet Corvette C6R (C6 LM Race Car'06 or '09, C6 Z06 or C6 ZR1)
Lamborghini Murcielago LP670 R-SV GT1 (LP-670'09)
Mercedes CLK-GTR (in europe) or CLK-LM (in Japan?)
Mclaren F1 GTR (BMW'97, F1 GTR'95 (BM and LM) or F1'94)
I think that 2010 and 1997 should be sepparated championships.
The 1997 version will have 10-6-4-3-2-1 point system.
The 2010 version will have 25 for the winner and 1 for 10th placer. Qualiffiying for 1st is 8 points, 2nd is 6 points and 3rd is 4 points.
Yes That's the Series i'm talking about. I love that Series. You said your PS3 Dead. We should create this Series. I think it'll be a great success.