The Jaguar XJR12 is a sport-prototype racing car, born in 1990 to replace the XJR9.
This model featured a carbon fiber monocoque chassis. The engine was a
V12 engine with two valves per cylinder. In 1990, displacement was 6
liters for the IMSA version and 7 liters in the Group C configuration;
these values were increased in 1991, becoming 6.5 liters for the
American version and 7.4 for the European one, whose weight was
respectively 930 and 1000 kg. The XJR12 was employed by Tom
Walkinshaw Racing in particular for the long distance races, such as
Daytona, Sebring and Le Mans, as this car was very reliable and regular
in race trim. The car was a superb racer: in 1990, it finished 1st
and 2nd in the Daytona and Le Mans 24 Hours races, and in 3rd place at
Sebring. Later on, it finished in 2nd, 3rd and 4th place at Le Mans in
1991, and in 2nd at Daytona in 1992. The car number 36, colour 'british racing green' and sponsored by Suntec, was a surprise in
the entry list of the 1991 Le Mans 24 Hours. Its most experienced
driver was David Leslie who drove with two pilots coming from Japanese
F3000 championship, Mauro Martini and Jeff Krosnoff.