I've been using an Oculus for over two years and never, not even once, got any kind of motion sickness, dizziness etc. For those few that do, I've heard it helps to close your eyes for a few seconds until the car stops, but even those people get used to it quickly...
I bought a racing seat and wheel pedal setup and have them sitting next to my desk and use the same computer to play iRacing games. Doesnt take up much room at all..
https://www.trakracer.com/