I specifically asked about this before launch and got nothing. lol
My God, it's current year and we still are forced into 16:9. The Forza 5 PC build had triple screen support 2+ years ago.
For the love of god give us free resolution options.
21:9, 4K, HD etc etc.
I'm not running an ultrawide monitor in the centre of my setup to have it wasting half the screen space!
Come on Turn 10!