I'm not being negative, simply pragmatic. I don't see the point in adding the rear camera when a front camera affixed to the goggles themselves would be a more immersive experience without the addition of a potentially dangerous blind spot directly in front of the player.
Article:
https://kotaku.com/5511077/driving-a-real-world-car-like-a-video-game-car
Video:
https://youtu.be/nIRUavithF8