Radical

The Radical car brand is a British manufacturer specializing in lightweight track cars and purpose-built racing machines. Founded in 1997, the company began with motorcycle-engined sports prototypes and later gained wider recognition through the two-seat SR3. Current models include the entry-level SR1 XXR, the widely raced SR3 XXR, the turbocharged SR10 XXR, and the more powerful closed-cockpit RXC. Each car is designed and hand-built in the United Kingdom, with a strong emphasis on low weight, aerodynamic downforce, responsive handling, and accessible circuit performance. Radical also supports single-make championships in several countries, giving owners a structured path from track days into competitive racing. These cars primarily serve amateur racers, experienced track drivers, and motorsport teams rather than conventional road-car buyers.