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  Columns > Ian Kuah > Still the One: the Iconic McLaren F1

   Published in: March 2007
 
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In the interests of ultimate driver enjoyment, Gordon Murray was determined to make his supercar as light as possible.

The central monocoque and the body panels are made from carbon composites. Most primary structure panels are double-skinned and stiffened by aluminum honeycomb. The result is immense torsional and bending stiffness and low weight.

The F1 weighs just 1138 kg (2506 lbs), 60 percent less than a Diablo or Testarossa of its period, and a massive 750kg (1652 lbs) less than the Bugatti Veyron. So rigorous was the weight paring schedule that wheel maker OZ Racing was asked to shave the 14 kg (31 lb) weight of its aerospace grade magnesium alloy wheel as best as they could without losing strength in the wheel. Ultimately, they achieved a phenomenal 30 percent reduction in the production wheel.


Even the toolkit, a seemingly insignificant source of extra mass, merited the same amount of attention to weight. French tool-maker, Facom, was commissioned to make a strong but featherweight tool kit, and came up with a tailored forged-titanium set. Weight is one thing; where it is situated is quite another. As on a racing car, the F1 has most of its mass around the center, creating a very low polar moment of inertia that greatly enhances the nimbleness of the car. Indeed, the luggage compartments, which are behind each door, occupy areas that are usually wasted space in other supercars. In the F1 however, they form two 4.0 cu ft (113 liter) boots (complete with totally customized luggage). Such is the ingenuity of this placement that the center of gravity of the car changes by less than one percent even with a full load of fuel, passengers, and luggage.

The F1 is a car with superb balance while cornering. The springs are rated much softer than you might imagine for a supercar. However, thanks to exemplary matching with the dampers, the result is a firm but supple secondary ride with iron fisted control at speed.
Lightness is not its only virtue; the McLaren F1 bristles with tomorrow’s technology. Ideas that its designers thought would have mass-market appeal in the near future included the miniaturization of a host of common automotive components from the transmission, to the in-car entertainment and its unique front and rear suspension configurations.

Even the laminated glass with its significant compound curvature has an inner membrane that both heats and tints the glass. This also helps de-ice the glass seven times faster than the EC average in cold weather, while cutting ultra-violet light intrusion by a dramatic 85 percent.

The silver paintwork that covers the composite body is a new material said to protect the bodywork better, and one of the eight patents that technical director Gordon Murray has applied for is a composite molding technique that cuts the curing time for these materials by a dramatic margin.



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