1983 12 Hours of Sebring
The 12 Hours of Sebring, The Coca-Cola Classic, was the third round of the 1983 IMSA GT Championship and was held at the Sebring International Raceway, on March 19, 1983. Victory overall went to the No. 9 Personalized Autohaus Porsche 934 driven by Wayne Baker, Jim Mullen, and Kees Nierop.
Race results
Class winners in bold.| Pos | Class | No | Team | Drivers | Car | Laps | |||||||||
| 1 | GTO | 9 |  Class Winners
|