SR10 XXR

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SR10 XXR •

Pure extreme performance

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.

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STANDARD EQUIPMENT

BODY

  • Lightweight spaceframe chassis with FIA-specification safety cell and crash structure

  • LMP-inspired, high-downforce composite bodywork

  • XXR-generation LED race lighting including FIA high-intensity central rain light

  • Bi-plane high-downforce track day rear wing and diffuser

  • XX-generation Le Mans pre-preg carbon composite mirrors

  • XXR-generation rear wing endplates

ENGINE

  • RPE-Ford 2261cc, 425bhp & 380ft-Ib, turbocharged engine

  • Direct injection, twin-independent variable cam timing and drive-by-wire throttle

  • Custom Garrett turbocharger

  • Forged motorsport pistons, connecting rods and bespoke dry-sump system

  • Latest Life Racing ECU with detailed interrogation function for maintenance and analysis

  • High-flow racing exhaust system

COCKPIT

  • Two-seater chassis with twin or single-seat options, optimised for use with a moulded race seat insert

  • AiM Formula Wheel with integral LCD display, lightweight shift paddles and on-wheel switching.

  • Display functions include LCD rev counter, gear indicator, shift light and engine/gearbox strategy manettino controls

  • Built-in SmartyCam video system with GPS and brake pressure and steering logging sensors

  • Pre-preg carbon-fibre dashboard with waterproof, backlit momentary touchpad

  • Dash-mounted brake bias adjuster

  • Wind deflector

FEATURES

  • Radical four-pot calipers on 315mm x 35mm front & rear fully-floating 48-vane disc brakes

  • Front & rear brake cooling

  • Solid-state Power Distribution Module (PDM) with Controller Area Network (CAN) linked wiring and telemetry

  • Data integration allowing additional data logging including tyre pressure and temperature monitoring, and laser ride height logging

  • FIA specification, foam filled 77L (US 20 gallons) fuel cell

  • Full electronic fire extinguisher system

  • Trickle-charger Li-ON

POWER TRAIN

  • Six-speed Hewland sequential transaxle

  • Radical developed paddle-activated gearshift system with auto-blipper

  • Automatic torque-biasing limited slip differential

  • Mid-engined, rear-wheel-drive

SUSPENSION

  • Fully adjustable Nik-link suspension system, front and rear unequal length top and bottom wishbones, fabricated uprights, front and rear adjustable pushrods

  • Lightweight cast aluminium updated uprights providing an improvement in durability

  • Interchangeable roll bars

  • Intrax triple-adjustable dampers with Anti-Roll Control (ARC) technology

WHEELS AND TIRES

  • Radical XXR design centre lock, cast aluminium wheels

  • 8" × 15" diameter front and 10.5" × 16" rears

  • Slick & wet tyre options,

  • Radical recommends Hankook

DIMENSIONS

  • Length: 4077mm

  • Width: 1799mm

  • Height: 1093mm

  • Weight: 725kg

OPTIONS

  • Billet upright upgrade

  • Additional silencer

  • Pre-preg carbon-fibre double front dive planes

  • Carbon-fibre splitter and rear diffuser

  • Air jack system

  • Advanced dynamic laser ride height (front and rear) logging

  • Tyre pressure and temperature monitoring system

Suspension logging sensors

  • Dry-break refuelling system

  • Electronic Power Assisted Steering (EPAS)

  • Nik-Link rollbar set

  • Forward-facing stay head protectors

  • Composite halo head restraint

  • Driver & passenger seat insert

  • Halo-inspired Cockpit Safety Structure (more info)

  • 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.

  • 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 almost 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. FIA specification crash boxes and fuel cells along with full electronic 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 can be equipped with an onboard video system with GPS and race logging, including brake pressure and steering sensors.