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The Jaguar XJR-6 was a prototype racecar built for the 1985 season.

Other than using a similar engine, TWR's XJR-6 had little in common with the 'American' XJR-5. Tony Southgate was responsible for the design and applied many lessons learned in the abandoned Ford C100 racer.

He laid out a carbon fibre monocoque and a highly advanced aerodynamics package with very large ground effects tunnels. It was quite a departure from the norm and would form the mould of all subsequently designed Group C racers. In conjunction with Zytek, TWR developed a Fuel Injection system of their own for the V12 engine. Their goal was to draw as much power from the engine with enough efficiency to meet the strict Group C fuel restrictions. Displacing 6.2 litres, the naturally aspirated engine produced around 650 bhp in endurance trim.

Three cars were constructed in 1985, but they did not debut until the end of the season. One of the early problems was the XJR-6's high weight, which also meant the engine could not be run at full power to preserve fuel. Another three cars were built over the winter and prepared for the TWR's first full season in Group C. A victory in the Silverstone 1000 km race was a clear boost to the moral, although Le Mans still proved a bridge too far with all three cars failing to reach the finish.

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Jaguar vehicles


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