The GI team got to take a part of the Microsoft Conference again this year, and one of the flagship titles they showed to the public to prove the Xbox One X could run at 4k 60 fps was Forza Motorsport 7. I feel like this is one of the easiest games to get to 4k 60 fps, but it is impressive nonetheless.
Microsoft also took the time to premiere the new Porche GT911 supercar which will also be fully playable when this game drops on Oct 3rd on both the Xbox One/Windows 10 and November 7th on the Xbox One X.