These were in a bunch of pictures of racing on the sand, back when they raced on Daytona Beach.
OK, this Pontiac got sideways and went over as the man was trying to escape.
But what was that guy doing on the race course, he's not dressed like an official.

The car is not blurred, he's dressed like a driver who has climbed out of his upset car, ditched his helmet, and is worried about
someone hitting his car pushing it over on him.
But that's just a guess.