Had a chance to test the Oculus Rift, along with D-Box. The combination doesn’t work great due to the seat motion causing the Oculus head tracking to go out of whack sometimes, but it is likely solvable with software.
This was done in Richard Burns Rally with a quickly slapped together Oculus “hack” for it as I could not get any existing solutions working. It did full stereo rendering with Oculus distortion + partial head tracking (It worked ok as long as you didn’t look too much to the sides)