Radical SR3 XX / SR3 RS SR3

2001-present

Radical SR3 XX / SR3 RS

Dedicated Race CarLimited

1.5L Suzuki Hayabusa I4 / 1.3L RPE V8185-305 hp1,200-1,350 lbsMR (Mid-engine, RWD)6-speed sequential

HPDE Overview

The Radical SR3 is a purpose-built race car that happens to be road-registrable in some jurisdictions. At 1,200-1,350 lbs with 185-305 hp, the power-to-weight ratio is hypercar territory. The sequential gearbox, slick tires, and massive aerodynamic downforce mean the SR3 operates in a different performance universe from any road car. The SR3 is not a car for casual track days. It requires a helmet, race suit, HANS device, and ideally racing experience before you climb in. The cornering speeds are extreme — the car generates over 2G in some corners. The sequential gearbox shifts in milliseconds with a pull on the paddle. Radical Cup provides a dedicated racing series with excellent competition and professional race management.

Strengths

Hypercar-level power-to-weight ratio — 1,200 lbs with up to 305 hpMassive aerodynamic downforce generates cornering forces over 2GSequential gearbox shifts in millisecondsPurpose-built race car — everything is designed for track performanceRadical Cup provides professional-level competition

Weaknesses

Not road-legal in most jurisdictions — requires trailer to eventsRequires race suit, HANS device, and ideally prior racing experienceMaintenance costs are high — everything is race-specSpares are specialized and expensiveThe performance level can overwhelm even experienced track drivers

Why People Love It

Nothing you can drive on a racetrack compares to a Radical. The cornering forces, the acceleration, the sequential gearbox — it is a Formula 1 experience at a fraction of the cost. Radical Cup racing is some of the closest, most competitive racing in the world.

Why People Hate It

It is a race car. You cannot drive it to the track. You need a trailer, a dedicated space, and race-level safety equipment. The costs are real race car costs, not street car costs. And the performance level can be genuinely intimidating.

Best For

Experienced racers seeking purpose-built competition, Radical Cup competitors, and drivers who want the ultimate track experience.

Not Ideal For

Track day beginners, people without trailers, or budget-conscious enthusiasts.

Arrive and Drive

Related Resources

Class

Racing classes for Radical SR3 XX / SR3 RS

See which classes accept the Radical SR3 XX / SR3 RS and what modifications are required.

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Course

Radical SR3 XX / SR3 RS SR3

HPDE Overview

Strengths

Weaknesses

Related Resources

Racing classes for Radical SR3 XX / SR3 RS

Car Control Fundamentals Course

Vehicle Dynamics & Setup Course

Car Preparation & Tech Inspection

Track Database