 His one-man 24-hour record averaging 161MPH, stood for 50 years, beaten in 1990 by an eight driver team.Jenkins's exhausting, 48-hour record is still on the books together with 15 other FIA records from 1940.After some full day runs, he would hop out clean-shaven, having used a safety razor after the last gas stop while circling the track at over 125 mph with no windshield.