FYI: The FTO LM in GT1 came in two colours, green and black.
FYI 2: The monaro 427 in race trim put out more like 700hp and had independant rear suspension, and an LSD. The V8 Supercars have 650hp(ish), live axle, and no rear differential action. The Monaro was whoopingly fast, and they announced a road version with 500hp. I think they pulled the plug on the road version when homologation was avoided for the race car.
In GT4 i'd love to see some old rally cars. The alpine a110 is already in which is great, but there are other cool cars like the saab 96, lancia stratos, chevette, renault r8 gordini, hillman imp (or davrian), and the abarth 1000TCR. They were all very famous rally cars, so they earn a spot in gt4.
For lemans cars, hmmmm. I'd love to see the chapparal 2F, ferrari p4 (sexiest car ever), and we all know the legendary gt40 will be in.
Oh, i'd really really love to see some CanAm cars!! The mclaren m20 (with the 9L engine and 1000hp), chapparal 2J, Porsche 917-30 (1400hp), and the shadow DN4 (or AVS Shadow mk1). All brilliant cars with hilarious acceleration and top speeds. The AVS mk1 was good for 250mph, and its tiny front tyres were good for 300mph according to firestone!
Oh, CanAm is HOT... i want i want!