I have a sneaky suspicion the LF-A and HSV are not in the demo. It's probably just the Gamescom cars plus the new VW's, Izuzu, GT Citroen Race Car....
Yea, fat chance. They certainly would have been shown by now in some videos. Also, they likely would have been shown in one of the trailers if they were in this demo. I know we saw the LFA's exhaust tips, but not the whole car or the Honda at all. It would have been cool to see and hear those cars, but they will both be in the game so I guess we can wait another 45 days or so.