Back 12-Stunden-Rennen von Sebring 1999 German Sebringin 12 tunnin ajo 1999 Finnish 12 Heures de Sebring 1999 French 1999-es sebringi 12 órás verseny Hungarian
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The 1999 Exxon Superflo 12 Hours of Sebring was the 47th running of the 12 Hours of Sebring. It also served as the first event in the new American Le Mans Series, which had replaced the IMSA GT Championship as the International Motor Sports Association's premiere series. It took place at Sebring International Raceway, Florida, on March 20, 1999.