High Quality Content by WIKIPEDIA articles! The 1989 World Sportscar Championship season was the 37th season of FIA World Sportscar Championship motor racing. It featured the 1989 FIA World Sports Prototype Championship, which was open to Group C1 Sports Prototypes, Group C2 Sports Prototypes and IMSA GTP cars. The championship was contested over an eight round series which ran from 9 April to 29 October 1989.