MAFKKA on 30 June 2009
GT (as far as i know, not a race fan either) has more gamemodes, GT TV with shows like Top Gear etc, is the only race game to supports 16 cars online, and authentic car handling to each specific car. I read somewhere where a two journalists bought their respective cars based upon how they handled in the game.
And Forza has more of a tuning and customization race game and have GRID-like rewind feature (dunno who was first or if GT has this). And a wide variety in leaderboards and video upload.
