BBC Top Gear Magazine

GEEKIEST WEIGHT SAVING IN FAST CARS

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01 Porsche GT3 RS sticker badge

A 992 GT3 RS weighs 1,525kg – 165kg more than the original 996 GT3 RS, which did without stuff like active aero, DRS and adaptive suspension. Still, in a sop to lightweigh­ting you’ll find no enamel badge at the end of the bonnet: the Stuttgart crest is replaced by a lacquered sticker.

04 Alpine A110 rear brake caliper

Normally an electronic parking brake uses its own tiny caliper to grip the disc. Brembo saved 2.5kg here by integratin­g the handbrake into the main brake caliper. Alpine also used the bare minimum of brackets to hold the brake lines. Each deleted bracket saved a further 20g.

07 Mercedes SLR McLaren roof latch

The McMerc SLR was an unhappy marriage: Mercedes wanted a deluxe ultra-GT and McLaren a featherwei­ght road racer. McLaren insisted the roof mechanism should have a manual latch, to save 6kg from being placed at the top of the windscreen, spoiling the centre of gravity.

02 Gordon Murray Automotive T.50 pedals

One of the delightful lightweigh­t details on Gordon Murray’s T.50 is the spindly pedal setup. By using the sharpened edges as the anti-slip surface, Gordon managed to shave 300g from the mass of the pedals in his iconic McLaren F1, which were already works of titanium art.

05 Lotus Elise electric windows

When Lotus began offering a Touring pack for the S2 Elise, it claimed the electric window motors it was using to move the Elise’s tiny side windows were so small, the system actually represente­d a marginal saving versus the manually wound windows with their chunky alloy handles.

08 McLaren 750S fixed instrument­s

In the McLaren 720S, the instrument screen folds alway leaving an LCD sliver showing only your speed, revs and current gear when in Track mode. McLaren saw an opportunit­y to save some weight here in the 750S, and the hinged dash has been replaced by a 1.9kg lighter fixed binnacle.

03 Honda NSX Type R gear gaiter

Honda’s engineers turned to weight saving to up the performanc­e of the most extreme NSX. One measure was to replace the leather gear gaiter with a sort of chainmail technomesh. You wouldn’t want to mash crumbs into it, but Honda would rather you didn’t eat in it anyway.

06 Porsche Spyder RS bimini top

The hardcore RS Spyder needed a new roof design versus the standard Boxster Spyder. Porsche dutifully redesigned it, saving 7.6kg, but added a new feature: a yacht-like ‘bimini top’, whereby you can leave the roof in place but leave the unzipped rear windows behind.

09 Aston Martin Valkyrie paint

Like the T.50, this is another supercar that took weight-saving into desperate measures, including optional lightweigh­t paint. Yep, Aston developed three low-mass paints for the Valkyrie which save a grand total of 700 grammes over the entire body, versus the ‘standard’ colours.

 ?? ?? 700g
SAVED
700g SAVED
 ?? ?? 5g
SAVED
5g SAVED
 ?? ?? 6kg
SAVED
6kg SAVED
 ?? ??
 ?? ?? 1.9kg
SAVED
1.9kg SAVED
 ?? ?? 10g
SAVED
10g SAVED
 ?? ?? 7.6kg
SAVED
7.6kg SAVED
 ?? ?? 2.5kg
SAVED
2.5kg SAVED
 ?? ?? 300g
SAVED
300g SAVED

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