Although McLaren’s focus has so far been on lap times over straight-line pace, the P15 will eclipse the 720S’s quarter-mile time of 10.4sec and challenge the P1’s 10.2sec. Likewise, it could potentially match the P1’s 0-60mph time of 2.7sec and get close to the P1 GTR’s 2.5sec. The 720S has a 0-60mph time of 2.8sec. It is over the 0-120mph sprint, though, that the P15 is likely to display its extra pace.
In part, the low weight has been made possible by the use of McLaren’s latest Monocage II one-piece carbonfibre tub, which was first used on the 720S launched earlier this year and now includes the roof structure. The surrounding bodywork is said to be all carbonfibre — although, intriguingly, our source has suggested that bodywork has been used only where it delivers a performance, rather than aesthetic, benefit. As such, the car is said to have a look described as “brutal”.
The source said: “This is the ultimate distillation of form following function. Whichever part of the car you look at, you will visually understand the function of the components.”
However, despite the project’s engineering-led bias, the look of the car is said to have been led and signed off by Rob Melville, who was promoted to McLaren’s design director in May. As a result, our artist has speculated that the car will retain many familiar McLaren design features, partnered with extreme wing and diffuser elements and even more aggressively aerodynamically shaped bodywork.
That look will include a substantial front spoiler and a rear wing described as “huge”. To achieve its track goals, the P15 will set new standards for active aerodynamics across the surface of the car. Details remain secret, but this will likely mean incorporating self-adjusting front and rear spoilers that will be fed air by a variety of ducts and scoops that can also open and close as required. The ride height of the car could also be adjustable to maintain maximum efficiency.
McLaren has already this year filed two patents relating to active aero, which is set to become a hallmark of the next generation of supercars and hypercars. The company’s Formula 1 know-how should help it establish early supremacy in the area with the P15.
There is also speculation around the shape of the front end of the car. The source said the front boot space of other more mainstream McLarens has been sacrificed in pursuit of performance, giving rise to the possibility of a significantly different look for the car.
Inside, the P15 is said to be stripped back in every way possible without breaching legal requirements for a road car, with even the seats adapted from lightweight racing car versions to save weight. Luggage space is said to be restricted to the point that there is room in the rear to carry only two crash helmets and sets of racing overalls.
P15 launch details remain scarce, although customers are said to already be vying for the limited production run of 500 cars. An official reveal event is expected to be held before the end of the year, but this is likely to be restricted to existing McLaren customers or those who have registered an interest in the car.
Starting prices will be about £700,000 plus tax (£840,000 in the UK) — almost the same as the P1, which was priced from £866,000, including tax, when it was launched in 2012. A public debut for P15 is anticipated for the Geneva motor show in March 2018, with deliveries beginning in the summer.