Open the box and you'll find a solid racing simulation that has been developed firmly upon the GP3 / GP32K foundation. GP4 carries the hallmarks of both these traits. At the same time, Microprose's publisher Hasbro knows a thing or two about milking a product for all it's worth, as we saw with the pitiful GP3 2000 Season Update. Microprose's Geoff Crammond knows a thing or two about creating decent racing simulations, a fact showcased by his sterling work from Revs all the way up to Grand Prix 3.