Fuel cel (hence the sound), giving electricity to 4 electrical engines, 1 for each wheel. Height of the suspension changes when a wheel is on or off-road. About a fast as a BMW M5.
Interesting car, there's an whole thread about it in the GT4P-forum. Do a search for MTRC.
Well, it does SEEM crappy... Yeah, it's quick, but it just doesn't feel it. Unfortunately, the only car I can put it up against is the Prius, so we'll have to wait and see.