If DTM is being considered as faster than GT1, then you have to consider the Japanese Super GT series as one that possibly has faster cars too. I know that the specifications of DTM and Super GT cars are being brought closer together over the next few years with an aim for them to be comparable by 2015 in order to allow for direct compertition and cheaper development for manufacturers, and maybe GT1 cars will be heading that way too. It means that efforts like BMW’s will be able to make a couple of extra of their new M3 coupe DTM cars, ship them over to Japan, and race them straight off the bat against Honda and Lexus, and Nissan will be able to do the same in Germany. I’ve heared there’s going to be a licenced version of DTM in America sanctioned by NASCAR, which sounds like an interesting idea.
Both Forza Motorsport and Gran Turismo have all of these cars available to drive, maybe that would be a good place to get a rough idea of who is faster, especially if tracks where all three race are hard to come by.
