This car can outlap many of its sportscar competitors for a fraction of the cost - it's no surprise the SR3 is so popular.
Ideal for novice to seasoned racing drivers alike, the Radical SR3 is the world's best selling race car for a reason. Launched with more power and precision, the latest XXR edition of the SR3 improves on the legendary SR3 formula to enable drivers to lap faster, harder and for longer.
The SR3 is available with either a 1340cc or 1500cc four-cylinder hand-built RPE racing engine to suit the driver's preference. Both are driven through a six-speed sequential gearbox with paddle shift and Quaife limited-slip differential, and are coupled with a new-generation racing exhaust system.
The SR3 XXR continues to offer AiM’s solid-state technology including a suite of data options and technology to help Radical drivers be the fastest on the race track. It also retains AiM’s popular Formula steering wheel technology, akin to those usually seen in high-level single-seater racing cars and Le Mans Prototypes.
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」）
SR3 XXR Standard Equipment
Body
・Lightweight spaceframe chassis with FIA certified safety cell
・FIA certified 77-litre (20 US gallons) fuel cell
・Composite bodywork, front splitter and rear diffuser
・Carbon fibre high-downforce bi-plane rear wing
・LED running lights and brake lights, FIA high-intensity central rain light
ENGINE
・RPE 5th Generation 4-cylinder 16 Valve 205hp 1340cc engine (Optional upgrade to 232hp 1500cc engine)
・Bespoke dry sump and mechanical oil pump
・Cooling system with Laminova heat exchanger and radiator fan
・Electronic drive-by-wire throttle and overhead fuel-injection
・Life Racing ECU engine management system and data logging
・Hi-flow racing exhaust system
・Lithium-Ion battery and trickle-charger included
COCKPIT
・Choice of single centre seat, left hand drive or right hand drive
・Driver and passenger seats with 6-point seatbelts
・AiM Formula steering wheel with integrated 4.3” TFT display
・Shift paddles and on-wheel switching including pit limiter
・Rev counter, gear indicator, shift light, and predictive lap time
・SmartyCam video system with GPS, Brake pressure and steering logging sensors
・Composite Dashboard with backlit touchpad and brake bias adjuster
・Driver wind deflector
・FIA Fire Extinguisher with dash mounted and external activation
FEATURE
・Bespoke Radical four-pot calipers
・280mm x 25mm fully-floating 48-vane disc brakes
POWER TRAIN
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Six-speed, integral sequential gearbox
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Radical developed paddle-activated gearshift system with auto-blipper
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Quaife limited-slip differential with interchangable final drive gears (3.07:1 standard) and reverse system
WHEELS AND TYRES
・Bespoke Braid centre lock, cast aluminium racing wheels
・8" × 15" diameter front and 10.5" × 16" rears
・Hankook Racing Tyres (slick & wet options)
DIMENSIONS
• Length: 4077mm
• Width: 1799mm
• Height: 1093mm
• Weight: 620kg
SR3 XXR OPTIONS
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Choice of single centre seat, left hand or right hand drive
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AP Racing brakes upgrade
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Triple-adjustable Intrax Damper upgrade with Anti-Roll Control
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Exhaust choice of loud or quiet silencer
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Halo-inspired Cockpit Safety Structure
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Driver & passenger seat insert
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Wrap-around headrest for GRP seats
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Carbon-fibre double front dive planes
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Pre-preg carbon-fibre front splitter (4kg weight saving)
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Carbon infused rear diffuser (6kg weight saving)
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Carbon-fibre dashboard
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Air jack system
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Tyre pressure and temperature monitoring system
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Suspension logging sensors
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Dry-break refuelling system
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Biofuel ready kit including Flex Fuel and NTK lambda sensor
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LiveU Solo Pro fitting kit and rear camera upgrade
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Choice of bodywork and seatbelt colours
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..jpeg)
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.
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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.
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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.
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UNDER THE BONNET
RPE GEN5 1340cc or 1500cc
As proven by Radical’s own best-selling SR3 race car, our stroked 1500 proves you don't need capacity to deliver outstanding performance. Loved by circuit and off-road racers alike, this RPE-developed variant benefits from bespoke components including a forged Arrow crank and unique Cosworth pistons.
Where to race your
SR3 XXR?
Discover the Radical Japan Cup, our exclusive Japanese-based one-make series designed for thrilling wheel-to-wheel competition. Participants benefit from comprehensive technical support and bespoke trackside hospitality at every event, ensuring you get the absolute most from your Radical Racing Experience. This unparalleled platform allows drivers to push limits, develop skills, and join a passionate community on Japan's finest circuits
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.
