I've played every game in the Gran Turismo series and gotta say that a PC sim like GTR2 kills every one of them. On top over time with new mods they just get better and better. I know have everything from the Japan GT500, GT300 series to 1988 F1 championship, to classic cars championships like escorts, Jag E types, GT championships, World Super GT Championships (F50, Mac F1 Aston etc etc). Even star in a budget car from UK top gear. You also have endless tracks, and get to download your locals. Oran Park, eastern crk, Winton, Hidden valley, bathurst, phillip island etc etc. F1 car around bathurst is nuts!
Gran Turismo just can't compete with that.