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Group B Motorsport

Group B Motorsport has evolved from Silverstone Autosport. We are based in the North West, just outside Chester in the Welsh town of Queensferry. We are home to one of the UK's finest Rotary engine builders and we also provide a full engine mapping and diagnostic service. Our experts comprise of former consultants to Boreham, M Sport, Ralliart and Rover Sport, giving over 30 years experience at WRC level. We can build your car or engine to 100% authentic regulations for a set time period or evolution. In recent years GroupB Motorsport have supplied cars to top WRC drivers including Henning Solberg, and set top three stage times on the fastest and toughest classic events. So if you are looking to rebuild your rotary engine, or want more information on mapping or 4WD Dyno Dynamics rolling road, then GroupB Motorsport are the people to talk to. So we build and look after your car...now it's your turn to show us what you can do!


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We recently purchased goods from you and now feel compelled to write to say a very special 'Thank You' for the wonderful service we received from your company and from Kayleigh in particular. Despite searching practically the whole of the UK retailers at the time, we had been unsuccessful in our ...

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