Tags: Motorsport Season.
The twenty-second season of the International Race of Champions started on February 13 1998. The series used identically prepared Pontiac Firebird Trans Am race cars and contested races at Daytona International Speedway1 California Speedway Michigan International Speedway and Indianapolis Motor Speedway. Mark Martin won the IROC championship his third straight and fourth in five seasons.The roster of drivers and final points standings were as follows:
