Nice shots. Steve's summed up my only real criticism of these shots - you must have used a hell of a fast shutter speed to freeze everything - even the wheels! Nothing 'wrong' with that per say except you do lose the impression of speed which is often a lot of the appeal of this type of shot. A slower shutter speed and panning with the action would have blurred the backround. As it is the cars look a bit like they're bogged down, chucking up the dust. Still nice shots though.
I'm pretty sure I saw a video of this rally once, the terrain is awesome!