2012 McLaren X-1

McLaren Special Operations (MSO), the division of McLaren Automotive responsible for the delivery of bespoke projects, will present a breathtaking one-off supercar at The Quail, an exclusive event on August 17, 2012 that is a highlight of the Pebble Beach weekend in Monterey, USA.

Called the McLaren X-1 and based structurally on the company’s groundbreaking carbon MonoCell but with a totally unique body, it has been created for an anonymous car enthusiast.

X-1: the brief

It’s not every day that a team gets to create something unique in a project that would take the supercar, even by McLaren standards, to a different level. The challenge began with a special brief.

‘One of our clients who already owned a McLaren F1, a Mercedes-Benz SLR McLaren and now a 12C, wanted a unique car,’ says MSO Programme Director, Paul MacKenzie. ‘The conversation began with our Executive Chairman Ron Dennis almost three years ago − before the 12C was even launched. The client wanted a machine that had all the capability of the 12C but wrapped in a unique body that reflected his needs and personality.’

In a subsequent meeting, Paul Mackenzie and Design Director Frank Stephenson went to see him to start to explore the sort of car he wanted.

Says Frank Stephenson: ‘The key qualities the client desired were “timeless and classical elegance”. Which was some challenge.’

That meeting with Mackenzie and Stephenson lasted for almost three hours. From the pages of notes that were gathered, the design team brought together hundreds of images from the world of automotive, architecture, fashion, design and even film. These were then presented to the customer, and were then narrowed down to a mood book, full of inspiring images from which the design spirit of this unique car would be derived.

Inspirational cars included a 1961 Facel Vega, a 1953 Chrysler D’Elegance Ghia, a 1959 Buick Electra, a 1939 Mercedes-Benz 540K and a 1971 Citroën SM. There were various examples of architecture – including the Guggenheim museums in New York and Bilbao – plus a Jaeger LeCoultre art deco clock, an Airstream trailer, a Thomas Mann Montblanc pen, a grand piano – and an eggplant. ‘The client liked the shiny texture of the finish,’ notes Stephenson. There was also a black-and-white photo of Audrey Hepburn.

‘The client wanted a competition between external designers – some outside the automotive world – and McLaren’s own designers,’ notes Stephenson. In the end, a design by McLaren’s Korean-born RCA graduate Hong Yeo was chosen, and completed under the direction of Stephenson.

One of the biggest design challenges faced by Yeo was that most cars that embody classic elegance and timeless values have front engines and rear-wheel drive proportions. This is the exact opposite of a mid-engined supercar. So a new visual language for the car had to be found which led to months of sketching and modelling to find that perfect visual balance.

Stephenson recalls: ‘From this design, we then produced a 30 per cent scale model, then a full-size hard foam model. Initially, we planned to do it all digitally but the client insisted on seeing “real” models.

‘The client was very clear in his own mind what he wanted. But the only styling feature prescribed were metal brightwork rails running from the nose, over the shoulderline and hips, to the rear of the greenhouse.’

In the words of Hong Yeo: ‘X-1 embodies the McLaren value that every part has to have a purpose. No details are simply visual cues, every one has a purpose. Although I like to think the wide body combined with pontoon style rear fenders will ensure the car glides when it’s moving just like a superhero’s cape…’

The styling took 18 months to sign off but the result is a design that in a few decades time will be hard to pinpoint exactly when it was created … timeless, therefore, exactly as the client requested.

X-1: the creation

The X-1 is the most ambitious example yet of MSO’s expertise. It has a whole new body made of advanced materials. Everything is bespoke, even down to the lights and wheels, necessitating new testing and homologation meaning the car took two and a half years to build, a process that began before the styling was signed off.

The X-1 had its own development programme because crucially, this wasn’t to be a fragile concept car that would never see tarmac. It was to be a usable car, road legal and capable of travelling at supercar speeds. It also had to comfortably seat two adults so although the 12C was already as shrink-wrapped as it could be from a packaging perspective, the ingenious flexibility of the MonoCell allowed the creation of a completely different form while maintaining the engineering purity of a McLaren.

A full CFD (Computational Fluid Dynamics) aerodynamic testing schedule ensured high-speed stability, and the car also completed approximately 625 miles of testing including two intensive testing stints at the Idiada circuit in Spain with chief McLaren test driver, Chris Goodwin. After testing, the whole car was meticulously rebuilt, by hand to concours standard.

X-1: the detail

MSO Programme Director Paul Mackenzie explains: ‘The X-1 showcases the skills of McLaren Special Operations. More and more luxury customers want bespoke or individual features. The X-1 demonstrates that we can provide the ultimate personalisation service. It also shows that MSO is not just a technology led company. X-1 demonstrates a commitment to perfection and to the highest levels of quality.’

All body panels of the X-1 are made from carbon, and are finished in a rich piano black, as specified by the owner. Body sides are lacquered visual carbon fibre. ‘The black paint has no metallic or colour tints and is one of the most challenging colours to paint, but the finish is absolutely exquisite and befits the car perfectly’ adds Stephenson.

Components were tooled exclusively for the car. They even include unique head- and taillights, inspired by the McLaren Speed Marque logo. The brightwork is machined from solid aluminium, and a nickel finish is then applied. The McLaren logo in the nose is specially machined from solid aluminium then nickel plated. Wheels are also unique to the X-1, and are diamond turned with a tinted lacquer to complement the exterior nickel-plated brightwork.

The brightwork itself is all machined from solid aluminium, and then nickel finished to give the same hue throughout. Even the McLaren Speed Marque badge in the nose is machined from solid aluminium, then nickel plated.

The same brightwork is used for the over-the-shoulder rails (as specified by the owner), at the base of the windscreen and the back of the glasshouse, and for the ‘eyebrows’ over the bespoke headlights. The McLaren Airbrake rear wing is also machined from solid aluminium and nickel plated, to complement the rest of the brightwork.

Perhaps the most unusual styling feature is the enclosed rear wheels, an upshot of the owner’s desire to have a car reflecting ‘timeless elegance’. The wheels are accessed by carbon panels using, as Stephenson explains, ‘some of the most gorgeous hinges you’ve ever seen’. The styling, too, is in no way compromised by the opening rear wings.

He adds: ‘The attention to detail is astonishing. Neat styling touches feature throughout the design, such as the rear number plate illuminators finished in carbon, a gorgeous machined aluminium cap is used for the header tank, and carbon finishers line the engine bay.’

The doors have also been developed specifically for the X-1, although they retain the dihedral action and twin hinges, and the roof is also new. Externally, only the glasshouse is carried over from the 12C.

The unique body of the X-1 means most dimensions have changed. The X-1 is 4658mm long – 109mm longer than a 12C. Width is 2097mm (with mirrors) – an increase of 188 mm. Despite the revised roofline, the height remains the same, at 1199mm. Kerb weight is almost identical (about 1400kg), as the lighter carbon body panels compensate for the greater length and width. Light weight, as with all McLaren projects, was a priority.

While the basic architecture of the interior did not change, personalisation includes bespoke Harissa Red McLaren Nappa leather used for the seats, door and roof trim, and switchgear with machined nickel-coated, aluminium bezels. The carbon interior trim has a titanium weave, to give a magical 3D-like effect. Special Andesite tufted carpet covers the floor.

All these changes ensured the X-1 needed special homologation for road use. The car has been thoroughly engineered to be usable and road legal. The X-1 shares the same the major mechanical components as the 12C, including the twin-turbo 625PS engine, giving astonishing acceleration and top speed.

Stephenson explains: ‘The X-1 epitomises how we can not only create a truly unique product tailored to the client, but also enable the client to become a key member of the design team throughout the process. It has been a truly rewarding and unforgettable experience. And I think that we as a team have created a completely unforgettable car that is true to one man’s vision.’

Hong Yeo concludes: ‘We designers are often blinded by the sun and assume that whatever we see and understand is the only way forward: to see the stars, sometimes you need the absence of that blinding light … looking at a car from a different perspective is what X-1 stands for.’

After its debut, on the Monterey Peninsular, the X-1 will return to MSO headquarters in Woking and be carefully checked over before it takes a place in the owner’s collection.

Story by McLaren Automotive

In Detail

tags	x1
submitted by	admin
type	Concept / Prototype Car
released at	2012 Quail Motorsports Gathering
built at	Woking, England
engine	90º M838T V8 w/Dry Sump Lubrication
position	Mid, Longitudinal
aspiration	Twin Turbo
block material	Aluminum
valvetrain	DOHC, 4 Valves per Cyl w/dual VVT
displacement	3799 cc / 231.83 in³
bore	93 mm / 3.7 in
stroke	69.9 mm / 2.8 in
compression	8.7:1
power	447.4 kw / 600 bhp @ 7000 rpm
specific output	157.94 bhp per litre
bhp/weight	418.41 bhp per tonne
torque	600 nm / 442.5 ft lbs @ 3000 rpm
redline	8500
body / frame	Carbon Fiber Monocoque ‘MonoCell’ w/Aluminum Front & Rear Subframes
driven wheels	RWD
wheel type	Forged Aluminum
front tires	235/35 R19 Pirelli PZero
rear tires	305/30 R20 Pirelli PZero
front brakes	Cast Iron Discs
rear brakes	Cast Iron Discs
front wheels	F 48.3 x 21.6 cm / 19 x 8.5 in
rear wheels	R 50.8 x 27.9 cm / 20 x 11 in
f suspension	Double Wishbones w/Coil Springs, Active Hydraulic Dampers
r suspension	Double Wishbones w/Coil Springs, Active Hydraulic Dampers
curb weight	1434 kg / 3162 lbs
weight distro	42.5 % / 57.5 %
wheelbase	2670 mm / 105.1 in
front track	1656 mm / 65.2 in
rear track	1583 mm / 62.3 in
length	4507 mm / 177.4 in
width	1909 mm / 75.2 in
height	1199 mm / 47.2 in
transmission	7-Speed Seamless Shift
tran clutch	Dual-Clutch