This is a perfect case of a big developer going 'Hmm, let's not do cars this time, let's try another vehicle,' and this is what we got. It uses the same game engine and graphics as Gran Turismo 4 but it somehow still works. Despite the poor sales, the demand for a sequel still exists and I concur because this is a fun motorbike racer that has the potential to rank up there with the Gran Turismo franchise...