The New Mercedes Benz SL 63 AMG | Part Four

Mercedes Benz SL AMG

Mercedes Benz SL 63 AMG

The AMG 6.3-litre V8 engine teams up with the AMG SPEEDSHIFT MCT 7-speed sports transmission to form a perfect partnership for dynamic driving pleasure and outstanding performance. The SL 63 AMG accelerates from 0 to 62 mph in 4.6 seconds before quickly going on to a top speed of 155 mph (electronically limited). The high-revving naturally aspirated engine generates 525 hp at 6800 rpm from a displacement of 6208 cc, delivering maximum torque of 630 Nm at 5200 rpm. The unique combination of high-revving concept and large displacement achieves the best of both worlds: high pulling power at low engine speeds coupled with exhilarating high-revving flexibility – right up to 7200 rpm.

The AMG V8 is packed with a wealth of fascinating racetrack technology, including the lightweight, extra-rigid closed-deck crankcase and cylinder walls with a revolutionary TWAS coating as well as the valve train designed for high engine speeds with bucket tappets in the cylinder heads. The vertical arrangement of the intake and exhaust ports together with the variable intake manifold featuring two integral throttle flaps results in superlative cylinder charging and high power output.

The sophisticated electronically controlled fuel supply provides a consummately spontaneous response to accelerator movements in all driving situations; the AMG sports exhaust with two oval, chromed twin tailpipes guarantees the characteristic AMG V8 vocals. The tri-metallic coating used in the catalytic converters results in a faster response from a cold start, more efficient emission control as well as superior long-term durability. The SL 63 AMG fulfils all standard exhaust emissions limits such as EU 4 and the specific requirements of the U.S. market (LEV-II, On-Board Diagnosis II and oxygen sensor diagnosis).

AMG sports suspension based on Active Body Control and 3-stage ESPÒ

The dynamic drive unit finds its perfect match in the SL 63 AMG suspension. The AMG sports suspension based on Active Body Control has been further enhanced and not only comes with new spring and damper tuning but also completely modified elastokinematics. The front axle bearings, the spring links and the torque strut along with individual strut bearings at the rear have been retuned to deliver greater agility and shorter stopping distances. In partnership with the optimised speed-sensitive power steering the SL 63 AMG now feels even more direct and livelier – enabling the driver to fully utilise the linear steering and oversteer/understeer characteristics typical of a sports car, especially on winding roads or a private racetrack. The AMG sports suspension based on Active Body Control also enables the suspension set-up to be customised. At the push of a button, the driver can select a sporty, firm response with reduced roll angles, or go for a comfort-focussed setting for excellent comfort on long journeys.

Also new is the 3-stage ESPÒ with sports function. This system provides three different settings and is the logical development of the AMG ESPÒ philosophy. The driver can choose between the settings “ESP ON”, “ESP SPORT” and “ESP OFF” by pressing the ESPÒ button in the AMG DRIVE UNIT – the activated setting is shown in the central display in the AMG instrument cluster.

Published 8 February 2008 Melanie Carter

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