The company was founded in January 1997 by amateur drivers and engineers Mick Hyde and Phil Abbott, who built open cockpit sportscars which could be registered for road use and run on a track without modification.

The company's first car, built by Phil Abbott in 1996, the Radical 1100 Clubsport, was based on a Kawasaki motorcycle engine placed inside a small open-cockpit chassis.

The cars were intended to run in the 750 Motor Club's races under the Sports 2000 category, with founders Abbott and Hyde driving.

Available with Kawasaki or Suzuki engine up to 1500 cc in displacement, the Prosports were even more powerful and faster than the Clubsports, and included F3-size slick tyres and an adjustable rear wing.

Launched in 2001,[2] Radical's next creation was the two-seater SR3, a car which could compete in international racing, such as the FIA's C3 class.

In 2006, Radical would make its largest leap into international motorsport with the development of the SR9, a complete Le Mans Prototype in the LMP2 class.

Combining exceptional performance and handling with LMP styling and low cost of ownership, the SR1 is priced at £44,500 + VAT.

It is powered by an advanced 182 horsepower RPE-Suzuki four-cylinder engine capable of propelling the car 0–60 in 3.5 seconds and eventually to a speed of 138 miles per hour.

The SR8 also features one of the largest engines Radical has ever put in their cars, with the 2700 cc RPE RPX V8 constructed by combining elements of Suzuki inline-4s, and producing 430 horsepower (321 kW).

In August 2009 Michael Vergers, driving an SR8LM, set the new lap record (6 minutes, 48 seconds) for a road legal production car at the Nürburgring Nordschleife circuit.

One SR8 was converted into an electric car by a team of students Racing Green Endurance from Imperial College London to drive the full length of the Pan-American Highway in May 2010.

[8] The project aims to challenge commonly held perceptions surrounding electric vehicles performance and range.

The TMG EV P001 is a road-legal electric sports car by Toyota Motorsport GmbH, based on a modified Radical SR8 chassis.

[9] Also based on the SR3, the SR10 features a Ford EcoBoost 2.3L, 4 cylinder, turbocharged engine which brings durability and longer service intervals to a similar platform to the SR8.

Later updated to the Ford Ecoboost twin turbo V6 engine with 654 hp and quaife 6 speed sequential gearbox, it is capable of 0–60 in 2.7 seconds and 178 miles per hour.

The Team Bruichladdich Radical squad also flew to the United States for the final round to of the American Le Mans Series, where Radical Chairman, Tim Greaves raced with his own Team Bruichladdich / Greaves Motorsport whilst also supporting Van de Steur Racing in the third SR9 completed.

Former Formula Ford racer Robbie Kerr joined the team as a driver coach for James Abbott.