The fourth 12-hour endurance race at Florida’s Sebring airfield was momentous, being round one of the inaugural FIA World Sportscar Championship season.
Most of the 81 cars entered were American or British. The fastest on pure pace were the three DB3s from Aston Martin and Cunningham’s sole Chrysler V8-engined C-4R and on formula the little DB HBR Panhards and Osca MT4s.