2021 Radical Radical SR10

The 2021 Radical SR10 is a purpose-built, open-cockpit track car designed to bridge the gap between high-performance prototypes and accessible club racing machines. Developed as the turbocharged successor to the SR3, it features a mid-engine layout and a lightweight chassis that emphasizes aerodynamics, grip, and driver engagement. At its core is a Radical Performance Engines–tuned 2.3-liter Ford EcoBoost inline-four, producing around 425 horsepower and 380 lb-ft of torque, paired with a six-speed sequential gearbox. This setup allows the SR10 to deliver blistering acceleration—capable of reaching 0–60 mph in roughly 2.4 seconds—while maintaining reliability and longer service intervals compared to earlier Radical models.

What sets the SR10 apart is its focus on usability as much as outright speed. Radical engineered the car to be easier to drive and more cost-effective to run, making it appealing to both amateur track-day drivers and seasoned racers. Its high-downforce bodywork, advanced data systems, and motorsport-derived components—like the Hewland transaxle and paddle-shift system—deliver a genuine race car experience without unnecessary complexity. With its combination of extreme performance, durability, and driver-friendly design, the 2021 SR10 quickly became one of Radical’s most successful models, even earning the title of fastest-selling car in the company’s history.