On the Racedepartment forums they're very exited about the Rift. Afaik the Project Cars and Assetto Corsa devs ordered a Rift already. On the ISI Forums (Rfactor) the're several threads about the Rift too, and one of the developers (Tim Wheatley) already approached Oculus for a devkit (he received as response that he'll have to wait for the second charge of devkits if he orders one). On the Live for Speed forum there's a Rift thread, but the devs don't seem to be too exited about it when i checked their forum, because they don't seem to understand that it's different from previous headmounts. Simbin no idea, i have no acess to their RaceRoom beta forum, same for iRacing (but i know that people over there are very interested in it).
I think that a good Rift implementation is better (more immersive) than gaming on triple monitors, especially with the Rift headtracking and stereoscopic 3d. It won't be a problem not seeing the shifter, because in real life you don't look at your shifter, you know where it is, and this would be the same with your racing rig. Button boxes could be tricky to operate, but i'd get a wheel addon with enough buttons which are in reach of your thumbs, so you use muscle memory there too. You wouldn't need the periphals like tablets showing your tachometer and stuff, because you see all the info in the cockpit of your car.
And maybe they implement interactive cockpits with hand tracking in the future.
Miahallen, you're the one who took the Sony HMZ t1 apart, and showed it in a YT video using it with iRacing, right?
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)