Yeah what @Talanes said in a sibling thread. If drivers are not physically present in the racing car then not only they're safer physically but cars could be designed without a human driver in mind (lighter, higher acceleration etc)

There's a relative to this already with first person view drone racing: https://www.youtube.com/watch?v=_ZLimUDUJTA

Put the racers in simulators that control real race cars remotely. iRacing with more real stakes.