Gran Turismo 5 Prologue is a roaring success. Graphically it's a huge step up not only from GT4 but from every racing game. The reaction of every car has never been so stunningly detailed, the handling has never felt so unique and realistic and there's a range of events to complete with multiple modes, including online play. The game isn't perfect. Still, it is an essential purchase for all driving sim and Gran Turismo fans.