2014 Radical RXC Coupe

When we first heard about the Radical RXC Coupe earlier this year, we knew we had a long wait ahead of us, as we anticipated not getting the details until the January 10th Autosport International show. Well, the wait was long, but we got our first taste a little earlier than expected, as Radical has just released the specifications and features of its upcoming coupe.

Before this release, we had little clue what to expect, but we did know that a V-6 engine would be standard and a V-8 engine would be optional. The output of said engines was a complete mystery and the performance numbers were even more blurred.

With this early release of info, Radical has officially moistened our whistle and we are now just waiting to see one hit the track for the first time. We’ll let you know this much up front, this coupe is shockingly powerful and even more shocking are its track numbers.

Hit the jump to read our full review of the Radical RXC Coupe and find out just how shocking it is.

Exterior and interior

Radical RXC Coupe

The Radical RXC is based on the SR9 Le Mans project and features one of the most complex bodies that Radical has ever produced. The car’s multi-piece bodywork combines composite and carbon- fiber sections, and will come in an array of color options.

Radical built the RXC Coupe on a high-tensile, laser-cut CDS tubular steel spaceframe and offers an integral roll cage that ensures maximum occupant safety and vehicle stiffness. The car is equipped with a set of gullwing doors that allow entry into its high-tech cabin with ease.

While inside this cabin, you are greeted by a multi-function steering wheel and power mirror adjusters. You also get air conditioning, an adjustable pedal box and FIA-spec bucket seats. All it’s lacking now is a navigation system, CD player and some speakers, and you’ve got yourself a pretty nice road car.

Interior and Exterior Specifications:

Dimensions (L x W x H)4,300 mm (169.3 inches) X 1,960 mm (77.2 inches) X 1,127 mm (44.4 inches)
ChassisHigh-tensile strength CDS carbon tubular steel spaceframe with FIA specification crash boxes front and rear
BodyAerodynamic multi-piece composites (optional carbon sections), front and rear diffusers, full-width carbon bi-plane rear wing, gullwing doors with gas rams, full lighting system with LED daytime running lights
Downforce900 kg (1,984 pounds) at max speed
InteriorMulti-function fully adjustable steering wheel, EPAS power steering, electrically adjustable and heated wing mirrors, air conditioning, heated front screen, single windscreen wiper, adjustable pedal box
SeatBespoke FIA-compliant HANS compatible Corbeau seat with six-point harness
Fuel tankRoad: 100-litre (26.4-gallon) aluminum tank Race: FIA fuel cell

Standard Features Include:

  • Multi-function fully adjustable steering wheel
  • EPAS power steering
  • Electrically adjustable heated wing mirrors
  • Air conditioning
  • Heated windscreen with single wiper
  • Adjustable pedal box

Driveline

Radical RXC Coupe

Under the hood, Radical has placed a Ford-sourced 3.7-liter 24-valve V-6 unit with twin-independent variable cam timing and sequential multi-port electronic injection. This engine delivers a total of 380 horsepower at 6,750 rpm and twists out 320 pound-feet of torque at 4,250 rpm. This V-6 engine is the base engine and the real beast – the optional engine – is yet to be fully uncovered.

The only details that Radical has released on the optional engine are that it is a 3.0-liter RP-series V-8 engine and that it delivers a total of 480 horsepower. No details are available yet on the torque output, which directly impacts its acceleration numbers.

Both engines mate to an all-new bespoke RPE/Quaife seven-speed transverse gearbox that sends power to the rear wheels.

The V-6 engine delivers some mighty stout performance numbers, as it sprints this coupe to 60 mph in just 2.8 seconds and allows it to hit a top speed of 175 mph. The V-8 numbers are not available yet, but we anticipate it taking about 2.5 seconds to get to 60 mph and a top speed in excess of 190 mph.

Driveline specifications:

Base EngineFord V6 Ti-VCT, 24-valve, 3700cc, DOHC, variable camshaft timing, sequential multi-port electronic injection
Optional Engine3.0-liter RP-series V-8
Base Output380 horsepower and 320 pound-feet of torque
Optional Output480 horsepower and TBD pound-feet of torque
TransmissionBespoke 7-speed transverse Quaife gearbox with paddle shift and autoblip
Base Acceleration (0-60)2.8 seconds
Optional Acceleration (0-60)TBD
Base Top Speed175 mph
Optional Top SpeedTBD

Suspension and Brakes

Radical RXC Coupe

As a first for a Radical model, the RXC will be offered with an Intrax Racing Suspension system with double wishbones to keep it glued to the asphalt. This new suspension system is has an optional four-way adjustment system, so you can refine it to any driving condition of track.

The RXC sits on a set of 17-inch wheels wrapped in either street or racing rubber. The fully floating brake system features 6-piston calipers to help drag it to a halt quickly. You can opt for carbon-ceramic discs, measuring 330 mm (12.9 inches) up front and 310 mm (12.2 inches) in the rear. These carbon-ceramic discs are not only more durable and effective than the standard discs, but they also lower the RXC’s unsprung weight, helping it handle better.

Suspension and Braking Specifications:

SuspensionFront and rear double wishbone, pushrods, bespoke inboard adjustable Intrax dampers (optional 4-way adjustable system)
BrakesFully-floating disc brakes with six-pot calipers (optional carbon ceramic discs and calipers), front disc 330 mm, rear disc 310 mm
WheelsCentre-lock cast alloys (forged option), front: 17x9.5, rear: 17x11.5
TiresRoad: Dunlop, front 235/620R17, rear 290/645R17 Race: Dunlop SP Sport, front 215/45ZR17, rear 255/40ZR17

Prices

Radical RXC Coupe

Nothing is official yet, per the press release, but earlier reports pointed toward a summer 2013 release date and a base MSRP of £89,500, which converts out to $144,250 for those of us in the U.S, for the road-going model.

LOVE IT
  • Radical’s first coupe
  • Super fast
  • Quite powerful
LEAVE IT
  • No details on which market will get the new RXC
  • Phew, that’s a lot of money for a Radical

Press Release

Radical RXC Coupe

The Radical RXC blows apart what was previously thought possible in the supercar marketplace. RXC is faster, more visually aggressive, more dynamic and performance-focused than anything this sector has ever seen.

From the makers of the Nürburgring production car lap record holder and the world’s most prolific producer of race cars comes a Le Mans-inspired racer for the road alongside a race variant ready for international GT and sportscar championships. Road trips, trackdays and race weekends will never be the same again.

History of the RXC

The RXC is the culmination of three and a half years of design and development to create the world’s most extreme road-legal coupe. Influenced and inspired by contemporary LMP design, it brings a true taste of Le Mans to the road. Dramatically styled, uncompromising in performance but with class-beating running costs, the RXC opens up hyper-GT ownership to a wider audience than previously possible.

The RXC is a completely clean-sheet design for Radical with only a handful of components carried over from its present range. Everything from the chassis and suspension design to the new V6 engine and seven-speed gearbox configuration has been developed specifically for the RXC under the guidance of Radical’s MD Phil Abbott and Chief Designer Nick Walford and his development team

‘In the whole history of Radical I don’t think I’ve been more excited about a new car than I am now with the RXC,’ said Phil Abbott. Quite a statement considering he was one of the founders and is the engineering driving force behind the whole company. ‘It’s the car we’ve always wanted to make, and by applying our extensive knowledge and understanding we have produced a GT car that - just like our other products - will outperform machinery costing many times more. But more important than that it’s going to be incredibly thrilling to drive.’

Design

Radical RXC Coupe

The RXC experience starts the moment you set eyes on its dramatic styling. Using experience from the SR9 Le Mans project – as well as extensive CAD modelling – the RXC breaks the mould in bringing current LMP styling and aerodynamics to the street. Carefully directed airflow means the RXC generates 900kg of over and underbody downforce, equalling the car’s mass at speed.

Cooling for the engine and braking systems is directed though vents in the nose and sidepods whilst a GT3-specification rear wing is adjustable to suit different circuit configurations. The cockpit is easily accessed by the gullwing doors, part of the most complex body that Radical has ever produced and incorporating both composite and carbon fibre sections. This multi-piece bodywork comes in a wide palette of colours and is designed to be easily and cost-effectively repaired or replaced.

The bodywork clothes a high-tensile, laser-cut CDS tubular steel spaceframe, developed in the same way as Radical’s FIA-approved SR series chassis. The integral rollcage ensures maximum occupant safety and vehicle stiffness, with both the nose and tail of the car boasting monocoque crash boxes. To prove the strength and very high level of safety the chassis will be submitted the same comprehensive FIA crash test that Le Mans cars are subjected to.

Powertrain

Radical RXC Coupe

At the heart of the RXC beats a high-performance, low maintenance V6 engine. The Ford Duratec 37 Ti-VCT engine used in the RXC has been optimised by in-house engine division RPE and engine management partner AER to create a reliable, high-power yet low running cost powertrain.

The engine is a 3.7-litre 24-valve V6 unit with twin-independent variable cam timing and sequential multi-port electronic injection, controlled by a bespoke Radical/AER Life engine management system as employed successfully on the SR3 SL roadster. A fly-by-wire throttle ensures immediate power and response and the car will meet full Euro 5 emissions compliance for markets across the world. Despite their racing specification the engine and gearbox service intervals are up to 10,000km.

For territories and championships that allow it, Radical can also offer a 3.0-litre 480bhp variant of its RP-series V8 engine. In production since 2006, the RP V8 is a proven high-performance powerplant used by Radical’s SR8 RX racecar and many other racecars worldwide. This latest 3.0-litre configuration takes the Radical concept to the absolute, while still offering affordable running and rebuild costs well below any other bespoke racing engine.

Both engine options drive the rear wheels through an all-new bespoke RPE/Quaife seven-speed transverse gearbox that is low in weight and ensures the overall weight balance remains very close to that of an SR3. Featuring paddleshift and an integral Quaife Automatic Torque Biasing differential, gear ratios are quickly and easily changed from the side of the gearbox like current F1 design practice. The in-house developed paddleshift system allows full-bore, 50ms seamless upshifts and automatically blips the throttle for clutchless downshifts without the need to heel-and-toe.

The suspension and brakes

For the first time on a Radical the RXC features a bespoke Intrax Racing Suspension inboard push rod suspension system with double wishbones all round to reduce unsprung mass and further improve Radical’s class-leading ride quality and handling. Four-way adjustment is available as an option on the RXC-optimised dampers, with all cars benefitting from GT3-style camber and suspension geometry adjustment.

330mm front and 310mm rear fully-floating disc brakes with six-pot calipers take care of braking. Carbon ceramic discs and calipers are available as an option. The brakes sit inside 17” centre-lock wheels front and rear – the biggest ever fitted to a Radical production car.

Electronics

Radical RXC Coupe

The AiM MXL2 LCD multifunction dashboard debuts on the RXC and provides a comprehensive snapshot of both engine information and performance figures. The optional datalogging system adds a comprehensive portfolio of configurable inputs, from brake pressure and temperature logging to G forces and suspension travel. AiM’s acclaimed SmartyCam system can also be added to the system to provide video with a realtime overlay of data, ideal for lap time improvement or corporate use.

Interior

Not only is the RXC Radical’s most technically advanced car but it is also its most comprehensively specified. The interior of the RXC features a multi-function fully adjustable steering wheel, EPAS power steering, electrically adjustable and heated wing mirrors, air conditioning, heated windscreen with single wiper and an adjustable pedal box. Occupants sit in bespoke Corbeau FIA-compliant trimmed bucket seats with six-point racing harnesses.

RXC Performance Figures

  • Power: 380bhp @ 6750rpm
  • Torque: 320lb ft @ 4250rpm
  • Weight: 900kg
  • PWR: 422bhp/ton
  • 0-62mph: 2.8 sec
  • Top speed: 175mph

RXC Specification

  • Engine: Ford V6 Ti-VCT, 24-valve, 3700cc, DOHC, variable camshaft timing, sequential multi-port electronic injection (selected markets: 2.0L Ford-RPE EcoBoost four-cylinder direct injection turbocharged, 300bhp)
  • Transmission: Bespoke 7-speed transverse Quaife gearbox with paddle shift and autoblip
  • Dimensions: L 4300mm W 1960mm H 1127mm
  • Chassis: High-tensile strength CDS carbon tubular steel spaceframe with FIA specification crash boxes front and rear
  • Body: Aerodynamic multi-piece composites (optional carbon sections), front and rear diffusers, full-width carbon bi-plane rear wing, gullwing doors with gas rams, full lighting system with LED daytime running lights
  • Downforce: 900kg at max speed
  • Interior: Multi-function fully adjustable steering wheel, EPAS power steering, electrically adjustable and heated wing mirrors, air conditioning, heated front screen, single windscreen wiper, adjustable pedal box
  • Seat: Bespoke FIA-compliant HANS compatible Corbeau seat with six-point harness
  • Fuel tank: Road: 100-litre aluminium tank Race: FIA fuel cell
  • Electronics: AIM MXL2 dash (optional data logging package)
  • Suspension: Front and rear double wishbone, pushrods, bespoke inboard adjustable Intrax dampers (optional 4-way adjustable system)
  • Brakes: Fully-floating disc brakes with six-pot calipers (optional carbon ceramic discs and calipers), front 330mm, rear 310mm
  • Wheels: Centre-lock cast alloys (forged option), front: 17x9.5, rear: 17x11.5
  • Tyres: Road: Dunlop, front 235/620R17, rear 290/645R17 Race: Dunlop SP Sport, front 215/45ZR17, rear 255/40ZR17


3 comments:

Oh that’s really cool. What would you give to be able to drive a race car on streets, right? Fortunately, they have thought of launching a street-legal version!

The first ever coupe is a good-start, but the concept lacks in impression. They have to provide more of it to give idea and suspense to the coupe-lovers.

It was a good start to Radical as they prepare for their first-ever Coupe. I’m sure that they had considered what was today’s trend, and I hope that they will provide new and innovative technology as they launch this one great project.

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