The Team C GT8 cars are now available in the US, for GT2. In stock are GT8L Nitro, and GT8LE Brushless. I have seen them and can vouch that it is not a conversion, but specifically built for GT class. The materials are good quality, especially the aluminum and steel drivetrain, just like the 1/8th buggy and truggy. If these cars perform anywhere near as well as the other 1/8th Team C cars, it will be something special.
Make sure to stop by to see Joan and Fernando Lopez at the Ipanema Worlds, as they will be running the GT8L for it's first race.