PS Blog: And it's also about pitting a variety of these machines against each other. From the very start of the first MotorStorm game we knew we wanted to build something where a bike can share a race track with trucks, ATVs and big rigs. MotorStorm is like some latter day automotive cola advert, we're a model of diversity and harmony, with all shapes, sizes, colour, ability and looks (scratch that analogy, you never see ugly folk in a cola advert). Pacific Rift has all kinds of vehicles, which ultimately boils down to eight distinct vehicle classes.