My son is 11...he loves the driving and open world parts of games like Far Cry 3 and GTA 5. But... and I know I'm probably strange in this regard these days... I dont let him play these games other than in the small doses of driving because of the rest of the content. A little bad language is OK and violence doesnt bother me (I let him play T games and violent M games like AC), but when GTA 5 kicks in full gear ghetto mode, even I cringe... LOL.
That said, he's not a 'racing' fan...so any recommendations for PS3 games with similar open world driving to games like these, but that's not 100% focused on racing -- and not a kiddie-game like Mario Kart -- but also is rated T or better (or even M, but with limited language and no major sexual content)? Does that even exist?