1993 IMSA GT Championship

The 1993 Camel GT Championship and Exxon Supreme GT Championship seasons were the 23rd season of the IMSA GT Championship auto racing series. It was the final year of the Camel's sponsorship of the prototype class, and the final year of the GTP and GTP Lights prototype categories before they were replaced with the World Sports Car (WSC) class of prototypes the following year.

Schedule
The GT classes did not participate in all events. Races marked with All had all classes on track at the same time.

WSC
World Sports Cars were classified with GTP cars in the final standings, but were run as a separate class in sprint races.

Le Mans Cars
Non-GTP prototypes raced at the 24 Hours of Daytona under this class.

GTS
GTO cars ran as part of the GTS class in endurance races.

GTO
GTO cars only raced as a separate class at sprint races.

Invitational GT
Production-based GT cars were allowed to compete in endurance races and selected sprint races as part of this class, not scoring championship points.

International GT
A class for ACO-spec GT cars was introduced for the Road America and Laguna Seca races, but no cars appeared at Laguna Seca.

WSC
WSC cars were counted as part of the GTP class for points standings.