Some cars vanish so completely that even dedicated enthusiasts draw a blank at the name. The Strathcarron SC-5A is one of them. Fewer than a couple of dozen were ever assembled, and today just a single example is believed to wear British road plates. That very car is now heading to auction, dragging one of the strangest footnotes in modern British sports car history back into the daylight.

A Name With Petrol In Its Blood
Strathcarron Sports Cars was founded in 1995 by Ian Macpherson, the 3rd Baron Strathcarron, operating out of an office in Hove and a workshop in Cambridgeshire. The motoring obsession was inherited rather than invented. His father, the 2nd Baron, earned the nickname of the moustachioed motorcycling peer in Parliament, flew Wellington bombers during the Battle of the Atlantic, raced 500cc machinery against a young Stirling Moss in the late 1940s, and spent nearly fifty years as a motoring correspondent. Reviving that name with a serious sports car was, for Ian, a matter of legacy.
An Engineering Cast List To Envy
The project began as the SC-4 concept, shown at the 1999 Geneva Motor Show and styled by Simon Cox, the designer later responsible for the Vauxhall VX220. The production car, renamed SC-5A, followed at the Birmingham Motor Show. What truly set it apart, though, was not the wedgy, Can-Am-in-miniature shape but the roll call of firms behind it. Reynard, then one of the busiest single-seater racing constructors on the planet, designed the aluminum honeycomb monocoque. Prodrive, fresh from running Subaru's rally campaign, handled the suspension with Bilstein dampers. Braking came courtesy of AP Racing calipers and Brembo discs, and the car sat on OZ Racing wheels. It read like a Formula 1 supplier list grafted onto a tiny road car.
A Motorcycle Heart
The powertrain is where the SC-5A turned genuinely eccentric. Instead of a conventional car engine, Strathcarron mounted a Triumph 1,200cc DOHC four-cylinder motorcycle unit amidships. Ilmor Engineering, the F1 and IndyCar specialist co-founded by Mario Illien and Paul Morgan, reworked the engine with bespoke injection and management software to improve emissions and low-rev drivability. The result was 125 bhp at a screaming 9,800 rpm, fed to the rear wheels through a six-speed Quaife sequential gearbox with a limited-slip differential, with Hewland consulting on the final drive.

At just 550 kilograms and only 3.6 meters long, the SC-5A was shorter and lighter than the already-tiny Lotus Elise, with no roof, no doors and no side glass to speak of. That featherweight figure translated into a 227 bhp-per-ton power-to-weight ratio, on a par with the contemporary Porsche 911, and a 0-60 mph sprint of 5.5 seconds on the way to a 125 mph top end. The press responded warmly, and Tiff Needell famously hustled one around Anglesey for the original-format Top Gear.
How A Rule Change Killed It
The car's downfall arrived not on track but in legislation. When the UK government revised its Single Vehicle Approval rules to close the loophole that exempted motorcycle-engined cars from automotive emissions law, the SC-5A's entire concept was suddenly illegal. Strathcarron tried to re-engineer the car around the Rover K-Series engine from the Elise, but the cost of such a redesign broke the company, and its production program folded in late 2002. Estimates of how many were built range from six to twenty against original ambitions of up to 150 per year.
The Survivor Coming Up For Sale
The example pictured here is the sixth car by chassis number, first registered on 21 June 2001, and it has covered a barely-believable 5,700 warranted miles from new. Its third owner kept it from 2005 until his death in 2024, after which the current owner acquired it in 2025 in genuine time-warp condition. It has since been freshly serviced and recommissioned, fitted with four new tires, and arrives with twelve MOT certificates carrying not a single advisory, an MOT valid into 2027, plus original press material and period magazine coverage. The seller believes it to be the only taxed and road-legal Strathcarron SC-5A in Britain, with the only two other known UK examples both declared SORN.

H&H Classics is offering the car at auction on 17 June with a guide price of £22,000 to £26,000, roughly $29,000 to $35,000. For a machine engineered by Reynard, Prodrive, Ilmor, Quaife and Hewland, and built in numbers you can count on your fingers, that looks like one of the more intriguing bargains in the affordable modern-classic world, assuming you can live with the fact that almost nobody you meet will ever know what it is.