The MG Metro 6R4: A British Rally Icon Reborn

In the annals of motorsport history, few cars capture the imagination quite like the Group B rally machines of the 1980s. These were vehicles of raw, unadulterated power and audacious design, pushed to the very limits of engineering and driver skill. Amidst this pantheon of legends, Britain presented its own formidable contender: the MG Metro 6R4. Born from an unlikely everyday hatchback, this purpose-built monster carved out a unique, if tumultuous, legacy on the world's rally stages, a legacy that continues to fascinate enthusiasts and inspire incredible restoration efforts even today.

The Unlikely Beast: Birth of a Rally Icon

The very notion of transforming an Austin-Rover Metro, a humble front-wheel-drive commuter car, into a World Rally Championship challenger seemed utterly preposterous. Yet, this was precisely the audacious vision behind the MG Metro 6R4. While it bore a superficial resemblance to its road-going namesake, beneath the skin, the 6R4 was an entirely different beast. Designed by the brilliant minds at Williams Grand Prix Engineering, led by Patrick Head, the car was a clean-sheet design, fundamentally disconnected from the production Metro.

Its heart was a bespoke, naturally aspirated 3.0-litre, 90-degree V6 engine, designated as the V64V unit. Crucially, this powerplant was sited behind the front seats, creating a mid-engined, four-wheel-drive layout – a radical departure from the standard Metro's front-engine, front-wheel-drive configuration. The V64V's cylinder heads were a marvel in themselves, modelled on those of Cosworth’s Formula 1 DFV V8 engine, allowing for impressive power outputs. In its 'Clubman' trim, the engine produced a healthy 250bhp, but in full works tune, it could unleash up to a staggering 410bhp. The mid-engined chassis owed virtually nothing to the standard Metro, featuring a complex tubular frame and a host of aerodynamic appendages grafted onto the basic bodyshell to achieve its distinctive, purposeful appearance.

The Group B regulations, infamous for their minimal restrictions, mandated a production run of at least 200 cars for homologation. Austin-Rover diligently met this requirement, with the first MG Metro 6R4 completed in mid-1985 and the final example rolling off the line in November of the same year. This tight production window underscored the intense development and manufacturing effort required to bring such a specialised machine to life.

Technical Specifications: Road Metro vs. MG Metro 6R4

The Group B Era and Beyond

The MG Metro 6R4 entered the World Rally Championship at the tail end of the Group B era, a period defined by its extreme machinery and thrilling, often dangerous, competition. The works Computervision-sponsored 6R4 made its debut at the 1985 RAC Rally, where it achieved its most successful factory result. Driven by the legendary Tony Pond, the car secured an impressive 3rd place overall, finishing behind a pair of dominant Lancia Delta S4s. This promising start, however, was quickly overshadowed by the FIA's controversial decision to axe Group B regulations at the end of the 1986 season, citing safety concerns following a series of tragic accidents.

With the sudden termination of Group B, Austin-Rover found itself with approximately 120 unsold 6R4s. These cars were subsequently disposed of, with purchasers receiving stern warnings that the Metro 6R4 was "not intended for domestic, casual, business or other motoring on the public highway." Despite this setback in top-tier rallying, the 6R4 found its true calling and continued to excel in another motorsport discipline: Rallycross. Its explosive power, four-wheel drive, and robust construction made it perfectly suited for the short, intense, multi-surface races characteristic of Rallycross, where it remained a dominant force well into the 1990s, cementing its reputation as a formidable competition vehicle.

A Life on the Stages: Chassis 102's Journey

Among the limited production run of 6R4s, chassis number 102 stands out with a particularly rich and well-documented history. This specific MG Metro 6R4 3.0L was first registered in 1985 under the number C744 ENW. Its competitive life began swiftly when it was acquired by British racing driver Ian Donaldson. In February 1986, with Donaldson at the wheel and Taylor Richard as co-driver, chassis 102 made an immediate impact, securing an impressive 3rd place overall at the Clarenbridge Crystal Galway Rally.

Later registered as B391 LPC, the car continued its rally career throughout the 1986 season with Donaldson and Richard, including a notable 9th place finish overall at the challenging Ypres 24 Hours Rally. In 1987, the car changed hands, being sold to John McKerrell, who continued its competitive journey. Under McKerrell's ownership, the 6R4 achieved an overall victory at the Carfax Stages, with Martin Prew behind the wheel. After participating in 18 rallies under McKerrell, chassis 102 was acquired by John Markwood. Now registered JAZ 9708, the Metro actively competed in 10 rallies between May 2004 and June 2009, with its last known competitive event being the Rally of the Midlands.

Following its retirement from active motorsports, the 6R4 wasn't relegated to a quiet life. It frequently participated in show events, notably sharing the track with Sir Lewis Hamilton's Mercedes F1 car at the Top Gear Festival Barbados in 2014. Chassis 102's competitive career boasts an impressive tally of 34 races, 1 win, 6 podium finishes, and 15 stage wins. After its illustrious sporting life, the car underwent a major overhaul. Its shell was replaced, and it was re-registered as C286 OPL, though importantly, the partitions and tubular parts of the original chassis were meticulously preserved.

Around 2016, the car was sold to Europe, eventually finding its way to Belgium where it was decked out in the iconic Belga colours, a homage to the car entered by Marc Duez in the 1986 Ypres 24 Hours Rally. In 2020, its current owner acquired chassis 102 and commissioned a comprehensive engine overhaul at Garage Andreas in France. This extensive restoration saw the engine block fully dismantled, all worn parts rectified or replaced, and the engine capacity, which had been reduced to 2.5L during a previous overhaul, painstakingly returned to its original 3.0L specification by changing the crankshaft. Simultaneously, the gearbox and running gear received a full reconditioning. This meticulous mechanical restoration represented a significant investment, exceeding €100,000.

Today, chassis 102 still proudly wears its Belga livery and has been returned to its International or Group B specifications, boasting its full 3.0L engine and 410 bhp output. Having been very little used since its recent mechanical overhaul, this historic Metro 6R4 is now fully prepared and ready for its next chapter, complete with a wealth of documentation including period photos, recent work invoices, log books, its V5 (C286 OPL), and a full expert report dated September 2023.

The Car SOS Rescue: Bringing a Legend Back to Life

Beyond the meticulously documented history of cars like chassis 102, the MG Metro 6R4 continues to capture headlines through its remarkable survival stories and dedicated restorations. One such instance, widely celebrated, involved the popular television show, Car SOS. The show embarked on an extraordinary mission to resurrect one of the ten original works MG Metro 6R4 Group B rally cars, discovered in the dour attic of a Northern Irish scrapyard. This winged, cartoonish cuboid of a car, seemingly destined for the crusher, was saved by the perceptive eye of rallycross driver Brian McKay, who acquired the engineless shell.

Tragically, Brian later suffered a stroke, halting the car's resurrection. This is where Tim Shaw and Fuzz Townshend of Car SOS stepped in. Their task was monumental. The restoration, which aired as the first episode of their ninth season, was so comprehensive that it necessitated an unprecedented 50-minute runtime – a rarity in television due to strict ad break scheduling. The challenges were compounded by the global pandemic, creating uncertainty even before the car reached their workshop. Despite the odds, National Geographic's backing ensured the show could proceed.

Fuzz Townshend revealed the sheer scale of the undertaking: 1400 hours of workshop time were condensed into that 50-minute episode. Unusually for Car SOS, the majority of these hours were dedicated to the electrical and mechanical nurturing required to make the car function, far exceeding the time spent on bodywork. Fortunately, the car's substrate wasn't rotten, and while the basic tubular frame needed straightening, the plastic panels simplified some aspects of the body restoration.

Sourcing parts for such a rare and bespoke vehicle proved to be an immense hurdle. The car arrived with only one hub, though Brian had thankfully managed to acquire an original engine before his illness – a 3.0-litre V6, which ironically was sitting in a Peugeot rally car, necessitating Brian buying the whole vehicle just for its motor. Tim Shaw highlighted the exorbitant cost and scarcity of original parts. He recounted an instance where a Danish contact demanded a "blank cheque" for a hub, eventually quoting an astonishing £25,000. Faced with such prices, the Car SOS team resorted to manufacturing parts themselves, utilising CNC machines working through the night to produce components like brackets, spigots, and flanges.

Maintaining originality was a priority, but practicality dictated some compromises. For example, a missing front differential was ingeniously replaced with an inverted unit from an E36 BMW, a complex modification but a necessary deviation from absolute originality. After countless hours of dedicated work, the 6R4 was largely complete, save for one crucial piece: the steering wheel. This emotional final touch was provided by the car's former driver, ex-British rally champion David Gillanders, whose poignant handover of the wheel symbolised the car's incredible journey and deep personal significance.

The restoration culminated in Fuzz Townshend getting to drive the resurrected 6R4, an experience he described as "agricultural" yet "stonking," despite its raw, tube-frame construction. Tim Shaw, however, had a less enjoyable ride, humorously recalling being "pretty much throwing up within about a minute." This vivid anecdote underscored the extreme nature of Group B cars and perhaps explained why the era was ultimately curtailed. The Car SOS restoration of the MG Metro 6R4 not only brought a legend back to life but also offered a compelling insight into the dedication, ingenuity, and passion required to preserve these extraordinary machines for future generations.

Frequently Asked Questions About the MG Metro 6R4

Was the MG Metro 6R4 a successful rally car?

While its factory works team only achieved one notable podium finish (3rd place at the 1985 RAC Rally) before Group B was cancelled, the MG Metro 6R4 found significant and sustained success in Rallycross, dominating the sport well into the 1990s. Its short World Rally Championship career was cut short by rule changes rather than a lack of potential.

How many MG Metro 6R4s were built?

FIA Group B regulations required a minimum of 200 cars for homologation. Austin-Rover met this requirement, with the first cars completed in mid-1985 and the last in November of the same year.

Why was Group B cancelled?

Group B rallying was cancelled by the FIA at the end of the 1986 season due to increasing safety concerns following a series of tragic accidents involving both drivers, co-drivers, and spectators. The cars' extreme power and speed, combined with minimal crowd control, led to an unsustainable level of risk.

What does 6R4 stand for?

The "6R4" in MG Metro 6R4 stands for "6 cylinder, Rally, 4-wheel drive". This succinctly describes the car's core technical specifications and purpose.

Are MG Metro 6R4s road legal?

When Austin-Rover sold off the remaining unsold 6R4s after Group B's cancellation, they explicitly warned purchasers that the cars were "not intended for domestic, casual, business or other motoring on the public highway." While some may have been registered for road use in various countries over time, they were never designed or intended to be road legal vehicles and would require significant modifications to meet modern road standards.

Conclusion

The MG Metro 6R4 remains a captivating chapter in British motorsport. Born from an unlikely premise and thrust into the chaotic, exhilarating world of Group B rallying, it quickly established itself as a potent, if short-lived, contender. Its radical engineering, from the mid-mounted V64V engine to its bespoke four-wheel-drive system, showcased the peak of automotive innovation of its time. The car's enduring appeal is evident not only in its storied competitive history, exemplified by the detailed journey of chassis 102, but also in the monumental efforts undertaken by enthusiasts and shows like Car SOS to rescue and meticulously restore these rare machines. The 6R4 is more than just a rally car; it's a testament to engineering audacity, a symbol of a wilder era in motorsport, and a cherished icon that continues to roar with the spirit of competition.

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