"Take the Pole Position with the Limited Edition - Check out SHIFT 2 UNLEASHED today to get your hands on the Limited Edition featuring exclusive bonus content with instant access to three additional cars - the Nissan Silvia spec.R Aero (S15), Alfa Romeo Giulietta QV, and Lamborghini Murciélago LP640 - plus 40 new career events. Race in Single-Type events with all racers in the same car, battle in classic and modern versions of the same car in Old vs. New events, and engage in Manufacturer Showdowns with racers behind the wheel of different car makes and models."
nice find. you can't go wrong for ten bucks. the link is only for the standard version and doing a quick search doesn't pull up the limited edition, so that part might be an in-store only thing.