According to the sheriff's department, Woods was the only occupant of the car, CNN reported. He was taken to a hospital for his injuries, the sheriff's office said.
Johnson tapped in for par on the 18th for a 4-under 68 to finish at 20-under 268, breaking by two shots the record set by Tiger Woods in 1997 and matched by Jordan Spieth in 2015
Earlier in near-darkness in the morning, legends Jack Nicklaus and Gary Player got the Masters off to a customary 'ceremonial' start but the competing players did not get off till much later.