Roger Dowson Engineering  Roger Dowson Engineering, also known as RD Motorsport, was an automotive engineering company, and an auto racing team run by Roger Dowson. The company was founded in 1982, and was most notable for running the works MG Metros in the British Saloon Car Championship in 1983 (and running them until 1985, after Austin Rover had withdrawn their support) and the works Mazda teams in the British Touring Car Championship from 1992 until 1994. Roger Dowson Engineering was established in 1982 by Roger Dowson, initially to build Group A specification MG Metros (in naturally aspirated and turbocharged form.) The turbocharged Metros had a claimed maximum power output of . They ran the cars in the British Saloon Car Championship in 1983 under the "Unipart with Daily Express" banner, initially entering Patrick Watts in a naturally-aspirated MG Metro in round two, before entering Tony Pond in a Metro Turbo from round four onwards. Watts switched to the Metro Turbo from round eight onwards, whilst Martin Brundle was entered in the final round in a Metro Turbo. Watts took two fourth places in Class C whilst driving the naturally-aspirated Metro, whilst Tony Pond took a Class B victory in the Metro Turbo. For 1984, the team entered two Metro Turbos for the first six rounds of the series, driven by Robin Brundle and Watts under the "Computervision Racing with Esso" banner, although Austin Rover had withdrawn their works support. Watts took three Class B victories in the first four races, with Brundle taking the other. The team only competed in the season opener of the 1985 BSCC season, with Steve Soper driving a Metro Turbo. He failed to finish, due to a carburettor issue. In 1987, Roger Dowson Engineering ran the ESSO Metro Challenge, a one-make series for MG Metro Turbos. They also made the kits used to prepare the cars for racing. 1987 also saw Roger Dowson Engineering enter the new British Touring Car Championship, running Jerry Mahony in a Class A Ford Sierra RS Cosworth in round six and round seven. The venture was not initially successful, as Mahony retired in both races. The team remained in the series for 1988, now under the "Arquati Racing Team" banner, with Mahony entering all 12 events in a Ford Sierra RS500. Mahony won the season opener at Silverstone, his first, and only, overall BTCC victory. Mahony also took four third-place finishes, and finished second in Class A (seventh overall) at the end of the season.