This is the new Wheelracer, containing many great new features including better physics, cameras, new missions and race hazards.Most exiting are the addition of 6 race missions taking place on Mars using actual Martian terrain geometry obtained from NASA via the MOLA orbiter.Take the most powerful motorcycle engine ever built and place it and the driver inside a 8 meter diameter high tech wheel constructed of a carbon-fiber rubber compound and you get....a Wheel Racer!