Mercedes SL63 AMG roadster revealed

Stephen Dobie
22 Feb 2012

Mercedes reveals its lighter, more powerful and technology-packed new SL63 AMG roadster

Mercedes has revealed its all-new SL63 AMG roadster. It will make its world debut at the 2012 Geneva motor show, and as usual for Merc’s performance convertible, it’s something of a tech showcase.
Power comes from AMG’s now widely used 5.5-litre V8 engine, direct injection and twin-turbocharging not only increasing performance over the old SL63’s 6.2-litre naturally aspirated unit (518bhp and 464lb ft maximums rise to 530bhp and 590lb ft), but improving its efficiency too (20mpg and 328g/km morph into 28.5mpg and 231 g/km).
With an all-aluminium bodyshell (and carbonfibre bootlid), it’s a notable 125kg lighter than the outgoing SL63, weighing in at 1845kg. As well as aiding its more environmentally friendly figures, it results in a ten per cent improved power-to-weight ratio, up to 292bhp/ton.
An optional AMG Performance pack ups power and torque to 557bhp and a fairly monstrous 664lb ft, enough to hustle the SL63 to 62mph in 4.2sec. The pack also lifts the electronically limited top speed from 155 to 186mph. Fuel economy is apparently unchanged.

Among the heavily abbreviated technology fitted as standard is ABC (active body control), an active spring and damper system tasked with reducing body roll, and MCT, the seven-speed automatic gearbox. This boasts comfort, sport, sport+ and manual modes, with features ranging from auto stop/start to a ‘race start’ launch control feature. A host of AMG Performance Studio options include a locking rear differential and sportier suspension.
Being a roadster, it boasts a folding hard-top as standard, while there’s a host of open-air gadgetry, with ‘airscarf’ neck heating, climatised seats and ‘magic sky control’ – a glass roof that can be tinted or lightened at the touch of a button – optional. Standard fit is ‘frontbass’, a clever new audio setup that’s said to optimise the stereo’s sound depending on whether the roof is closed or folded.
Prices haven’t yet been revealed, but expect little change from £110,000 when sales begin in June. Just in time to enjoy the UK’s inevitably short heatwave…

All of the 2012 Geneva motor show news is here

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