#2
EFFICIENCY
making the new 508 smaller creates a virtuous circle, which boosts efficiency
508 Fastback measures 4.75m long: that’s 8cm shorter than the outgoing 508, and it stands 6cm lower. But the wheelbase comes down by only a couple of centimetres, to claim more legroom than in an Audi A5 Sportback
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Being shorter makes the 508 more manoeuvreable, with a 1.5m tighter turning circle than its predecessor. Should be a blessing in European cities’ narrow streets.
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Blindingly obvious, but a smaller size equates to less mass. On average, this 508 generation (codenamed R8) weighs 70kg less than its predecessor. Every gramme saved helps mitigate fuel consumption and CO2 emissions.
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It may not look it, but the 508 is narrower at the front than at the rear. A smaller frontal area reduces wind resistance, and tapering the cabin after the passenger cell helps create a more aerodynamic boat-tail.
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Peugeot offers three engines: a 1.6-litre turbo petrol, and 1.5- and 2.0-litre diesels. CO2 emissions are best-in-class: the 129bhp diesel automatic emits just 98g/km, while the equivalent entry-level petrol puffs out a measly 123g/km on 17-inch rims.
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A new eight-speed automatic transmission is standard on all engines except the 1.5-litre diesel. Tuned for efficiency, it also unlocks the potential of the 508’s driver aids, such as fully automated parking and stop-and-go cruise control.
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The 508 is the first Peugeot to bond chassis sections together, as well as weld them. The result is a car more resistant to bending, which helps anchor the suspension and makes for more precise handling.
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A stiffer structure also helps keep out noise. The 508’s front subframe, which mounts the suspension, also isolates noise, as does 1mm thicker sideglass.
