I started today with 4.5 hours of sleep and I’ll do just great with that. Once a week my body grabs 10-14 hours in a single night to “catch up”.
So yes, theoretically 80% may be better at driving than the average, it is just so that the other 20% are even worse at it.
The last weeks I have practised to not focus too much on if Ive had a sleep deprived night and that helps and works for a few days.