The online racing simulator
If you're not bothered to wait for your Oculus Rift or you don't have the money
Quote from sermilan :This is both ridiculous and brilliant

https://cardboard.withgoogle.com/

Have one. It's fun to play around with. Actually modified mine a bid to have a handsfree headset. But it's not really usable to play LfS for example, even if you use freetrack and trinus gyre.

FGED GREDG RDFGDR GSFDG