The P1 represents McLaren's current flagship Ultimate Series hypercar, but there's also the even rarer and more hardcore GTR variant. McLaren only built 58 examples which were originally intended exclusively for track-use, less than 30 of which were made road-legal by famed specialist Lanzante Motorsport – including this one currently for sale at UK car dealer Tom Hartley Jnr. Chassis number 044 was specified in the iconic Lark livery to match the owner's McLaren F1 GTR that competed in the All Japan Grand Touring Car Championship in 1996.

It was the fourteenth P1 GTR to be made street legal and has only clocked up 852 miles. The car comes complete with its original flight case, which includes factory supplied diagnostic equipment, racing wheels and tires, racing exhaust and a tailored car cover, as well as its original owner's handbooks, spare key and original factory invoice. The 3.8-liter twin-turbocharged V8 engine and electric motor produce a combined output of 986-hp, allowing the hypercar to accelerate from 0-60 mph in just 2.6 seconds and reach a top speed of 217 mph. Compared to the standard road-going model, the P1 GTR has 86 more horsepower, produces 10 percent more downforce, and is 110 lbs lighter.

The dealer hasn't listed a price, but the P1 GTR would have originally set you back around $2.6 million, and it's not uncommon to find dealers charging twice that. This isn't the first time a track-only British supercar has been made street-legal either, as we recently saw the reveal of the world's first road-legal Aston Martin Vulcan.