The SLR McLaren, developed in collaboration with the McLaren Technology Centre, was introduced in November 2003 as Mercedes-Benz’s entry into the world of the supercar. It was ready to compete with the likes of the Porsche Carrera GT and the Ferrari Enzo. However, those two cars were built as all-out sports cars, pushing the performance envelope to its very edge. Mercedes-Benz and McLaren decided upon a different approach, developing a sports car that combined the best aspects of supercars and grand tourers. Their aim was to craft a car that embodied the best of both worlds, one that could cross continents at speeds close to 200 mph and provide its passengers with an unrivaled level of comfort and style.

In a nod to Stirling Moss’ 300 SLR, which wore #722 and won the 1955 Mille Miglia in record time, McLaren released the 722 edition, which was introduced in 2008 as an upgraded version of the already excellent model. Its horsepower was raised to 650, and as a result, the car’s 0–60-mph time was improved to 3.6 seconds. Larger carbon-ceramic disc brakes were fitted with lighter 19-in. wheels, and the nose received an all-new diffuser and air splitter to improve downforce, as well as a modified front spoiler. Inside, the SLR 722 edition remained largely unchanged, save for some trim changes and new bucket seats and a steering wheel, which were both upholstered in leather and Alcantara. One year later, the SLR 722 S was released, further amplifying the intensity of the most powerful SLR produced by lowering the chassis by 10 mm, adding special 19-in. wheels, and applying a special Crystal Antimony Grey paint color. Both coupe and roadster versions of the SLR 722 and 722 S were produced, providing owners with an option to let the wind flow through their hair, if so desired.

Taking the SLR 722 S one step further, only six SLR McLaren 722 S McLaren Edition roadsters were constructed. These boasted a different body kit, one that was inspired by the race-ready 722 GT, weighed nearly 50 kg less than the standard body, and provided increased downforce, as well as an upgraded suspension over the “standard” SLR McLarens. All of the cars were painted grey.

After it was produced as a U.S.-specification SLR 722 S Roadster, this car was shipped to McLaren’s headquarters in Woking, Surrey, for its transformation into a McLaren Edition. However, this car is the only example featuring a number of mechanical and cosmetic improvements completed by McLaren itself, including a one-off, two-tone McLaren Orange and black paint scheme. Under the hood, McLaren graced the engine with 100 extra horsepower, thanks to upgraded engine management software, upgraded intercoolers, and a McLaren sports exhaust. This would be the only McLaren Edition car to receive those engine upgrades, and it is estimated to reach 60 mph from a standstill in 2.9 seconds, which is 0.7 seconds faster than the standard car!

Numerous carbon fiber parts were added, including new front fenders, a deck lid with an adjustable wing, side-view mirrors, a front spoiler, hood slats, new front fenders, and an underbody with an upgraded rear diffuser. Keeping the car’s new color scheme in mind, the brake calipers were painted matching McLaren Orange and the tailpipes were painted black. The interior received several updates as well, including carbon fiber doorsills, headrests embroidered with McLaren logos, reupholstered seats and door panels in diamond-patterned black Alcantara, McLaren Orange-painted seat frames and some interior trim, new McLaren Orange seat belts, and orange stitching. The upgrades are fully documented by paperwork and receipts from McLaren, and the car is accompanied by its original books, tools, a spare key, and a factory car cover.

The Mercedes-Benz SLR McLaren, known for being extremely comfortable and reliable high-speed tourers, showcased the most advanced performance and technological innovations that Mercedes-Benz and McLaren could offer to their demanding customers. While 150 SLR 722 S Roadsters were made, only 25 were destined for the U.S. From those cars, only six McLaren Editions were produced and five would remain in Europe, leaving this as not only the sole U.S.-specification SLR 722 McLaren Edition Roadster, but also the only one to receive such a plethora of upgrades. This SLR McLaren 722S Roadster is a true factory one-off and undoubtedly the most unique example of its kind.

At the time, over $1 million was invested into this car when new. This extremely special SLR McLaren Roadster, currently showing under 4,900 miles, is certainly ready for more enjoyment by its next owner.