The Coca-Cola Twelve Hours of Sebring International Grand Prix of Endurance, was the second round of the 1980 IMSA GT Championship and was held at the Sebring International Raceway, on 22 March 1980.
Das 28. 12-Stunden-Rennen von Sebring, auch Coca-Cola Twelve Hours of Sebring International Grand Prix of Endurance (28th Annual Coca-Cola 12 Hours of Sebring), Sebring Airport, fand am 22.
NO Driver / Nationality Car Entrant Laps Time/retired Group Practice Classified: 1. 9 Bob Garretson / USA Porsche 935 K3 Tu 009 00030 Bob Garretson 708 24:01:36,871 1. GTX 16. 1:51,259 Bobby Rahal / USA Brian Redman / GB 2.