GT Sport |OT| This maybe could not be but possibly is GT7
As long you are connected online, Campaign mode missions, time trials, arcade mode. If you're planning on playing completely offline though, then things get more limited apparently "portions of the Arcade Mode, including limited two-player split screen, single player races on select tracks and time trials can still be played offline.".
I want a beefy career mode, guess I'm out of luck then.