With 666 hp pushing just 2,711 lbs, McLaren’s 675LT appeases both Newton and the Devil

Power means nothing if it has half a continent to lug around, so with its latest supercar, McLaren took Newton’s second law of motion to heart.

At just 2,711 pounds dry, the 666-horsepower 675LT is “the lightest, most-driver focused, most exclusive series-production McLaren supercar ever built.”

The series in question is the British brand’s Super Series, which sits above the entry-level Sport Series in the McLaren lineup. The 675LT exists alongside the 650S (from which it is based) and the Asia-only 625C under the Super Series banner.

Currently being displayed at the 2015 Geneva Motor Show, the featherweight supercar boasts some series performance figures. Its 3.8-liter, twin-turbo V8 channels 516 pound-feet of torque through a seven-speed dual clutch to rocket the LT to 60 mph in just 2.9 seconds, 124 mph in 7.9 seconds, and eventually to a top speed of 205 mph.

Those specs are near equal to the 650S, which is around 220-lbs heavier and slightly less powerful, but there is a law of diminishing returns once you reach this insane level of performance. More importantly, straight-line acceleration isn’t the focus here; it’s track prowess.

McLaren 675LT

To accomplish this, the 675LT, a tribute to the ‘Longtail’ Formula 1 cars of he ‘90s, boasts a bevy of space-age components and technology. The front and rear tracks have been widened by 20mm, for instance, and the springs have been stiffened all around. The car creates 40-percent more downforce as well, thanks to revised bodywork and a new carbon fiber air brake. The steering is quicker too. In fact, compared to the 650S, a third of the parts are either new or modified.

It is, however, road-legal, so it boasts a multimedia system, air conditioning, and even some Alcantara upholstery covering up the metal bits.

The supercar, with its striking titanium exhaust (the pipes turn blue!) is available to order now for £259,500 ($398,929). Only 500 examples will be made, with deliveries commencing this July.

Watch the 675LT’s debut video below.