• Mazda Banner2

  • Subaru_Banner.jpg
  • Sparco banner


Read more


Read more


Read more

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!

Click here for our  Latest News....

Next Events

No Calendar Events Found or Calendar not set to Public.


Sign up for our free newsletters to get information, latest news and special offers

Useful Links

What Our Customers Say

Ordered my parts mid day and they arrived before 12.00pm next day Excellent service and Kayleigh was extremely helpful and informative An asset to the company..

Top service Mr M B