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AMG's new SL roadster gets torquey

POSTED BY admin ON 23 February 2012

Previously Mercedes-Benz’s tuning division, AMG, introduced the SL63 roadster with a high-revving naturally-aspirated 6.3-litre V8 engine.

Pundits didn’t warm up to the new roadster with the said engine.

While an excellent performer, the 6.2-litre engine was against the roadster’s otherwise smooth and sophisticated nature, as compared to its relaxed and grunty 5.5-litre supercharged V8 predecessor.

For the brand new SL63 roadster, AMG utilises its new 5.5-litre turbocharged V8 engine, known as the M157, which produces an impressive 530hp.

Better still the engine’s torque output not only goes up to 800Nm, but it is served up at 2,000rpm, so idyllic motorway cruising is once again on the SL’s menu.

Even so, the SL63 clocks 0-100km/h times of 4.3 seconds and will top out at the electronically governed barrier of 250km/h.

If those figures won’t pique a jaded customer’s interest, they can opt for the AMG Performance Pack which bumps power figures up by another 27hp and 100Nm, while trimming the 0-100km/h time by 0.1 seconds and raising the electronic governed top speed by another 50km/h.

Aside from the engine change the SL63 AMG roadster sports carbon-fibre inner supports in the boot lid, a feature which is said to pared back the weight by a mere 5kg.

That, in addition with the all-aluminium bodyshell, means that the new SL63 is a whole 125kg lighter than the old SL63.

Even so at 1,845kg this roadster is far from being called a featherweight.

To keep the mass in check AMG strapped it with an enhanced version of their AMG sport suspension, which allows drivers to switch between hard riding performance driving and high levels of comfort at the flick of a switch.

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