Pure extreme performance. The top-of-the-range Radical with extra grunt from a turbo-charged engine.

Ideal for track-day enthusiasts, motorsport country club members, and racers across the globe, the SR10 delivers more power and torque than has ever before featured in Radical's SR line-up. With a high horsepower, long-life powertrain, the Radical SR10 is everything you'd expect from a Radical – turbocharged.

The SR10's sole purpose is to out-run and out-manoeuvre the competition whilst remaining easy to drive and cost-effective to run. Radical Performance Engines (RPE) cutting-edge engine tuning capabilities and Ford’s EcoBoost's reliable engine architecture come together to unleash a powerful race engine with 425bhp and 380lb-ft of torque.

A bespoke Garrett G-Series turbocharger delivers better throttle response and reduced lag, with forged pistons and connecting rods and a bespoke dry-sump lubrication system for bulletproof durability. This high-output engine is integrated with a new Hewland GT3-derived six-speed gearbox.

XXR で一日を過ごし、XX のオーナーでもある私は、新型 XXRがすでに優れた SR3 をさらに進化させた、非常に歓迎すべきモデルであると自信を持って言えます。

— トビー・ソウリー（Radical オーナー／インディカー・プロドライバー）

このクルマのバランスこそが、記憶に深く残る。途方もないスピードでも修正が容易で、ドライバーに自信を与えてくれる。
私はロードカーが大好きで、人生のほとんどをそれに乗って過ごしている。でも、それはできないんだ。

- アンドリュー・フランケル（オートカー誌「年間ベストライターズカー」）

SR10 XXR Standard Equipment

Body

Lightweight spaceframe chassis
Composite gelcoat bodywork
Carbon fibre high downforce wing
LED headlights and brake lights

ENGINE

2.3L turbocharged engine with direct injection
Forged motorsport pistons and connecting rods
Bespoke dry sump system
Twin-independent variable cam timing
Custom Garrett turbocharger
Drive-by-wire throttle
Hi-flow racing exhaust system
Life Racing ECU and data logging

COCKPIT

Two-seater or single-seat chassis
Formula wheel with integral LCD display
Adjustbable engine maps from wheel
Carbon fibre dashboard
Dash-mounted brake bias adjuster
Buit-in SmartyCam video system with GPS

FEATURE

Bespoke Radical four-pot calipers with front & rear brake cooling
315mm x 35mm fully-floating 48-vane disc brakes

POWERTRAIN

Mid-engine, rear-wheel-drive
Six-speed Hewland sequential gearbox
Automatic torque-biasing limited slip diff.
Pneumatic paddleshift with auto-blipper

SUSPENSION AND BRAKES

Fully adjustable Nik-link suspension
Front and rear unequal length wishbones
Adjustable pushrods
Lightweight, serviceable, cast uprights
Interchangeable roll bars front and rear
Intrax triple-adjustable dampers
Anti-Roll Control (ARC) technology
Bespoke Radical four-pot calipers

WHEELS AND TYRES

315 × 35mm fully-floating 48-vane discs
Radial center lock, cast aluminum wheels
8" x 15" front and 10.5" x 16" rear tyres
Hankook Racing Tyres (slick & wet options)

DIMENSIONS

Length：4077 mm
Width：1799 mm
Height：1093 mm
Weight：725 kg

SR10 XXR OPTIONS

Carbon fibre front splitter and rear diffuser
Air Jack system
Dry-break refuelling system
Tyre pressure and temperature monitoring
Electronic Power Assisted Steering (EPAS)
Choice of 7 bodywork colors
Choice of 5 harness colours
Graphics packages available from factory

Core to the Radical DNA is the aerodynamic grip, nimbleness and balance. Known all around the world, by drivers of all abilities as a terrific car to drive – easy to pick up but hard to master.

Unlike road cars that have been modified for track use, the full Radical range has been designed for track use from factory. The chassis is optimised for performance, focusing on aerodynamics, high downforce, and stability at high speeds. This ensures that the car provides maximum grip and agility during high-performance driving.
Beneath the skin of every Radical is a tubular spaceframe chassis that provides an excellent strength-to-weight ratio, enhancing the car's overall performance and safety. The design of the chassis helps reduce the overall mass of the vehicle, resulting in improved acceleration, braking, and cornering performance. Surrounding the chassis, the lightweight composite fibreglass bodywork is available in a choice of seven colours from factory. Combined with the spaceframe chassis, this provides unbeatable value for money for a pure track car that is easy to maintain and repair anywhere in the world.
Adjustable rear push rods and three-way dampers allow drivers a full range of control to setup the car ready for the track ahead. An adjustable rear wing allows the driver to change the setup to suit the conditions, exploring the balance between straight-line speed and cornering performance.
With over 25 years of experience and more than 3,000 cars sold to date, every component on a Radical has been tested under extreme conditions to give customers the confidence they need to push lap after lap. New innovations, such as the optional cockpit safety structure, are designed to further protect the driver. Crash boxes and fuel cells along with fire extinguisher systems come as standard.
Choose from single or dual seat options to allow for driver coaching or entertaining passengers. Each car is also available with various seating position options including centre-seat, left or right-hand drive. The dashboard features a customisable digital display to bring real-time information to the driver, and comes equipped with an onboard video system with GPS and race logging, including brake pressure and steering sensors.

UNDER THE BONNET

RPE 2.3L i4 Turbo

This is no ordinary production unit; as Radical’s in-house powertrain division, RPE have developed a bespoke turbocharger, induction and engine management package to release over 425bhp and 380lb-ft of torque from the engine.

RADICAL EXPEREINCE

Get a taste of the Radical experience through our high-octane, action-filled events. From exhilarating ride-alongs to tailored sessions for various skill levels, our programs are meticulously designed to foster driver development. Under the guidance of professional coaches and within a controlled environment, participants can hone their abilities, build confidence, and unlock their full Radical potential. These events offer an authentic preview of the intense competition and unparalleled thrill found in the Radical Japan Cup.