The Nissan Present the 38th Annual 12 Hours of Sebring International Grand Prix of Endurance, was the third round of both the 1990 IMSA GT Championship season and was held at the Sebring International Raceway, on 17 March 1990.[1][2]
- ^ "Event: 12 Hours of Sebring International Grand Prix of Endurance". Racing Sports Cars. March 17, 1990.
- ^ "1990 Sebring 12 Hours". Motorsport Database.