McLaren San Francisco has been busy lately delivering P1s (and a whole bunch of 650Ss) in the States – six of them actually, ever since the first one arrived in March this year.

The good folks at the dealership were kind enough to snap and share pictures of the limited production P1s as they touched ground, including of this latest arrival, No105 finished in a bespoke blue paintwork.

Asked on its FaceBook page about the name of the shade, McLaren San Francisco replied that it's a "Custom color spec'd by the client. No official name".

In the gallery below, you can find a few more P1s (forgive us if a 650s somehow slipped by with its P1-ish looks) ordered in different colors.

18:00 EST reveal

McLaren has released a final teaser of the P1 GTR set to make its official debut today at Pebble Beach at 18:00 EST.

Set to be offered only to P1 owners, the track-only GTR will cost 1.98M GBP and will enter production in 2015 right after McLaren will complete assembly of the last 375 P1 unit. Output will be bumped from 916 PS to 1,000 PS and chances are it will all be wrapped around in a package weighing less than the P1 which tips the scales at 1,400 kg (3,086 lbs).

Besides the more power + less weight combo, the McLaren P1 GTR will adopt a more aerodynamically optimized body encompassing a big diffuser and an equally large rear wing. It will also feature significantly wider wheel arches housing beefier wheels while the side skirts will also be enlarged. Instead of the P1's trapezoidal center exhaust pipe, the GTR will have a dual round configuration mounted in the same place.

McLaren hasn't specified how many P1 GTRs will be built but they did say P1 owners willing to pay the 1.98M GBP price tag will also get the chance to participate in driving events "at some of the world's most iconic circuits with specialist vehicle support." They will also have access to the firm's racing simulators and will benefit from driver training from experts that "have helped develop and train Formula 1 champions." In addition, P1 GTR owners will be able to discuss with the company's driver fitness team as well as with design director Frank Stephenson.

McLaren has taken the covers off of the track-focused P1 GTR Design Concept at Pebble Beach, previewing the production model due next year.

The launch of the P1 GTR commemorates 20 years since the F1 GTR was launched for the 1995 GT season. The P1 is undergoing development by the McLaren Special Operations division, and promises 986 horsepower from its 3.8-liter twin-turbo V8 and electric motor combination.

Compared to the standard car, the GTR has a front track that's wider by 80mm, with flared wheelarches and a fat new splitter. The side mirrors are now up in the A-pillars, again putting aerodynamics above any kind of motor vehicle legislation to make it street-legal.

At the rear, the retractable wing of the standard P1 is replaced by a fixed unit that McLaren says allowed a smoother, lower rear end that's more aerodynamic, because there are no mechanicals needed to raise and lower the big spoiler.

Also back there is a big new set of pipes, special to the GTR. It all looks fabulous together, so here's to hoping nothing gets changed when the production one is unveiled in a few months.

THE McLAREN P1™ GTR DESIGN CONCEPT UNVEILED: THE VEHICLE FOR THE WORLD'S MOST EXCLUSIVE DRIVERS' CLUB

- Design concept previews the dramatic look of the ultra-exclusive track-focused racer
- One clear goal: to be the best driver's car in the world on track
- Increased power to 1,000PS (986 bhp) from the motorsport-optimised 3.8-litre twin-turbo V8 petrol engine and lightweight electric motor
- Built, maintained and run by McLaren Special Operations
- Further details of bespoke McLaren P1™ GTR driver training programme confirmed

Twenty years ago, the then soon-to-be-launched McLaren F1 GTR began testing ahead of an assault on the 1995 GT season. The track derivative, as the road-going version had done, rewrote the rule book and the claimed victories and titles across the globe in the years that followed, securing a place in motorsport folklore. Two decades on, and the covers have been pulled off the dramatic and purposeful McLaren P1™ GTR design concept during a private event at the Pebble Beach Concours d'Elegance event in California. The aggressive racing concept is a preview to the final model which, with a little under a year until production commences, has now entered the next phase as the development team works to hone and further optimise the ultimate track-focused racer.

With no need to meet the legislations for road legality, the McLaren P1™ GTR will be the most track-tailored and most powerful model produced by McLaren Special Operations to date, with a clear target even more focused than its road-going sibling: to be the best driver's car in the world on track. With even greater emphasis on aerodynamic performance through the dramatic bodywork, the McLaren P1™ GTR will also feature race-proven slick tyres, a fixed ride height, enhanced power delivery from the IPAS powertrain and Formula 1™-derived DRS from the large, fixed rear wing and an ERS-style push-to-pass system, all combining to offer the ultimate track experience.

Aerodynamically optimised to offer more extreme performance

Based on the McLaren P1™ road car, the track-focused McLaren P1™ GTR design concept further optimises the aerodynamically efficient 'shrink-wrapped' body shape in order to offer maximum performance, superior handling characteristics and optimised driver engagement on track. A host of changes have been made, and the car has been thoroughly re-engineered from the ground up to ensure the McLaren P1™ GTR achieves its target of being the ultimate drivers' car on track.

The front track of the McLaren P1™ GTR design concept has been increased by 80mm and is coupled with a more aggressive GT-style front splitter. Reprofiled low temperature radiator ducts seamlessly flow into the leading edge of the aggressively flared front wheelarches, while the active aerodynamic flaps are retained from the McLaren P1™ in the floor ahead of the front wheels.

The bodywork is 'shrink-wrapped' around the carbon fibre MonoCage chassis behind the front wheels, and is designed to channel the air from around the wheel well. An additional aerodynamic blade is located behind the wheelarch to clean the air from the front tyres. This aero device flows seamlessly along the bottom edge of the dihedral doors, along the flank of the carbon fibre bodywork, to an additional side panel at the rear which ducts additional air into the high temperature radiator and improves the aerodynamic performance of the rear floor.

The profile of the McLaren P1™ GTR design concept remains as dramatic as ever, hunkered down on to the race-prepared suspension with a fixed ride height, lower than the standard car. The snorkel air intake, inspired by the design of the original McLaren F1, is still present within the roof structure of the carbon fibre MonoCage chassis. The wing mirrors have been repositioned to the A pillars, to put them closer to the eye line of the driver and reduce aerodynamic drag, while the trailing edge of the door-mounted radiator channels have been extended to draw more air down through the cavity within the door, and into the engine to aid cooling.

A set of lightweight 19-inch motorsport alloy wheels are fitted – 10.5-inches wide at the front, 13-inches at the rear – and are secured into place with quick-release centre locking nuts. Tyre changes are made easier through an onboard air jacking system, similar to that seen on the McLaren 650S GT3 racer.

At the rear, a large, twin-element wing is mounted on dramatic carbon fibre pylons which extend around the rear of the bodywork. This fixed height wing is fitted with a hydraulically operated Drag Reduction System (DRS) to boost acceleration performance, and has been honed to provide increased levels of downforce compared to the road car, working with the active aerodynamic flaps located ahead of the front wheels. The active aerodynamic devices optimise aerodynamic balance through all phases of cornering. The bodywork of the car has been reprofiled to improve aerodynamic efficiency below the large rear wing, and incorporates a quick-release system without affecting the rear wing. The road legal McLaren P1™ stows the rear wing within the bodywork, but with the fixed height wing, and therefore no pistons or moving mechanical parts, the bodywork of the McLaren P1™ GTR design concept behind the engine bay is now a smooth, flowing surface, feeding clean air below the wing and over the back of the car.

Below the rear wing sits the exposed, centrally mounted exhaust, which is an all new design, developed exclusively for the McLaren P1™ GTR. Made from inconel and titanium alloy, the system maximises the aural characteristic of the higher output 3.8-litre twin turbo V8 engine to maintain, and further emphasise, the McLaren sound. The design of the exhaust has also changed, with a straight cut twin pipe setup now used in place of the single exit exhaust.

Airflow is managed carefully across the whole car and channelled in the most efficient and effective ways possible. This includes the air below the car, and a large carbon fibre diffuser dominates the lower half of the rear of the car. This is designed to work in tandem with the rear wing to enhance rear downforce and grip levels. The McLaren P1™ GTR design concept runs on the bespoke slick tyres designed by technical partners Pirelli in collaboration with McLaren, designed to offer a greater level of grip, cornering agility and handling balance. These characteristics enable much later braking into corners, higher apex speeds, and the earlier application of the throttle on the exit of corners, which lead to improved lap times.

Modern interpretation is more than just a family resemblance

The design concept unveiled at Pebble Beach wears a livery which harks back to the original McLaren to wear the GTR badge. During the rigorous testing programme for the F1 GTR, the test car, chassis #01R, originally wore a distinctive orange and silver livery. This colour scheme has been reinterpreted for the model, with the number, 01, signifying the original chassis number. That car eventually went on to take the coveted win at the 1995 24 Hours of Le Mans.

The McLaren P1™ GTR driver programme

Launching with the McLaren P1™ GTR design concept is the bespoke McLaren P1™ GTR driver programme – the ultra-exclusive ownership programme which will include specialist driver training, human performance and access to the McLaren racing simulator, and which is designed to prepare each driver mentally and physically to fully exploit the abilities of the McLaren P1™ GTR. The programme will be completely bespoke, with each individual having a fully-tailored experience.

The McLaren P1™ GTR driver programme promises to be one of the most exclusive owners' clubs in the world and will offer an unrivalled ownership experience. McLaren Special Operations will maintain and run all cars, and manage the programme throughout. Together with one of the most exciting track-focused cars ever developed, the programme offers unprecedented access to the technologies, resources and people throughout the McLaren Technology Centre. Every experience will be unique and tailored specifically, providing a full immersion into McLaren, and gaining access to the experiences and resources which have helped develop and train Formula 1™ champions. This will include working closely with a support team comprising authentic professionals that have operated within the rarefied world of professional motor sport. These will all be experts in their respective fields, all boasting top-level international experience from the Human Performance Programme, race engineers, designers and test drivers.

Launching with the McLaren P1™ GTR design concept is the bespoke McLaren P1™ GTR driver programme – the ultra-exclusive ownership programme which will include specialist driver training, human performance and access to the McLaren racing simulator, and which is designed to prepare each driver mentally and physically to fully exploit the abilities of the McLaren P1™ GTR. The programme will be completely bespoke, with each individual having a fully-tailored experience.

Stone chips are some of the most annoying aspects of owning a car, right up there key scratches and bird poop. But there are solutions to avoid paint and windshield damage from small stones, with the protective film being the most effective.

And if we’re talking about an insanely expensive car like the McLaren P1, protecting it from stone chips is essential, as Jay Leno shows in his latest video.

As the first McLaren P1 owner in the US, Leno says the first thing he did upon taking delivery of the car was to call experts so that they applied a protective film over the P1’s precious bodywork.

The video you are about to watch details the entire operation, which obviously requires a lot of attention to detail, patience and steady hands. It’s a painstaking work, whose final result is judged as great if the car looks exactly like it did at the beginning.

Scroll down to watch how the team of specialists applied a “condom” to Jay’s McLaren P1.

The McLaren P1 and Porsche 918 Spyder are two of the hottest hypercars on offer at the moment, but how well will they fare in a straight line against the fastest Ducati on sale? We pitch them both against a 1199 Superleggera to find out.

The McLaren P1 can charge to the front of today’s supercar ranks.

The development programme for the most powerful and most exclusive McLaren model to-date has been stepped up over the winter months, with the limited edition McLaren P1™ GTR being put through its paces across Europe and the Middle East. Ahead of the start of production later this year, and the start of the bespoke Driver Programme, the track-only model will make its global debut in production form at the 2015 Geneva Motor Show in March.