The Jaguar XJR-15 is a limited-production road-legal sports car developed by Jaguar in collaboration with Tom Walkinshaw Racing, built between 1990 and 1992. It was based on the Le Mans-winning XJR-9 endurance racer and used a carbon fiber monocoque chassis, making it one of the earliest road cars to employ such a construction. Power came from a 6.0-liter V12 engine derived from Jaguar's racing program, and the car was produced in very small numbers, with total production generally cited at around 50 units. A dedicated one-make race series, the XJR-15 International Challenge, was run alongside Formula 1 events during the 1991 season, with a prize of one million dollars offered to any driver who could win all three rounds.
