modified version of the XJR-9 into production, initially designated R-9R but ultimately designated Jaguar XJR-15, a limited-edition road-going racing car. The XJR-15 was produced in 1991 at Bloxham, alongside the XJ220. TWR then took on the design and development role for the new Aston Martin DB7. This car was designed by Ian Callum and built at the former Jaguar Sport facility at Bloxham. In 1996 TWR designed, engineered and built the Volvo C70 Coupe, launched with the 2.3 T5 engine used in the touring cars. TWR's final fully developed road car was the XJ220S, limited edition racing version of the XJ220, built between 1996 and 1997. TWR took the standard XJ220, lightened it considerably by fitting carbon-fibre bodywork, an aerodynamic body kit, (derived from the XJ220C racing car) and stripping out the interior. A tuned J-V6 engine was fitted, rated at completing the package. In 1987, Walkinshaw established a partnership with General Motors' Australian division Holden, re-creating the former Holden Dealer Team performance and tuning division, Holden Special Vehicles. TWR undertook work for other manufacturers including development of the Renault Clio V6, and the Saab 9-3 Viggen. TWR were also involved in MG Rover's attempt to develop a replacement for the elderly Rover 45/MG ZS; they were contracted to re-engineer the Rover 75/MG ZT into a smaller car. However, the demise of Arrows and TWR meant that RD/X60, as this project was known, never reached production. TWR in MotoGP In 1997, former motorcycle world champion Kenny Roberts formed his own racing team and manufactured a motorcycle. Basing his company in England to take advantage of the Formula 1 industry, Roberts enlisted Tom Walkinshaw Racing to help develop a three-cylinder two-stroke engine. While the motorcycle was never able to win a Grand Prix race, it did manage to win a pole position with rider Jeremy McWilliams taking the top qualifying position at the 2002 Australian Grand Prix. Return to British Touring Car Championship In 1994, TWR returned to the BTCC, allied with Volvo. This partnership was responsible for the 850 Estate racing car, which was only rendered uncompetitive when the FIA allowed the use of aerodynamic aids in 1995. TWR then built and ran the works 850 Saloon with six wins in 1995 and five wins in 1996, and S40 securing one win in 1997 in the BTCC. In 1998, TWR Volvo won the British Touring Car Championship with Rickard Rydell