I've been a Gran Turismo fan for a long time, how does this compare?
I wish I could answer that but I've never played gran turismo. If your new to the FORZA franchise I'd recommend you pick up Forza 3 first. You can get the collectors edition with all the dlc for under $20. Well worth it. Same with FORZA 4. 3&4 are more traditional racing while horizon is more free roaming. The online community is huge as well.
My first FP Slickdeal!!! UNSC ELEPHANT
Deals of 2013
10 Coby 32" led tv's TRU $110. Ea
2x UNSC Elephant mega bloks TRU $45. Ea
6x halo mega bloks Phantom $16 ea