Built as a potential Le Mans contender, it never competed in any race. In 1966 the Le Mans regulations were changed and prototype cars were limited to 3.0 L engines and the Jaguar was fitted with a 5 litre V12 engine, meaning it could not enter the race.
This did not stop the XJ13 from being one of the most beautiful racing cars of all time. The disign was penned by Malcolm Sayer who had also designed the E-type production sports car.
