Weighing 900 kg and powered by a 7.0 L 60 degreeSOHCV12 developing 730 horsepower / 545 kW @ 7000 rpm, and 579 ft lbf / 785 N·m @ 5500 rpm, the XJR-12 could hit 368 km/h / 229 mph.[1]
During the 1990 24 Hours of Le Mans, the XJR-12 covered 4,882.4 km at an average speed of 204.036 km/h / 126.782 mph with a maximum trap speed of 353 km/h / 219 mph.