The new AMG SL’s mechanicals in depth
The new SL is based mostly on its own distinctive spaceframe construction. Distinct in structure to that used by the GT to accommodate the lengthened wheelbase and fashioned from a combination of aluminium, carbonfibre, magnesium and metal, it is created at Mercedes’ plant in Bremen, northern Germany, exactly where the roadster is assembled beside the Mercedes-Benz C-Class Estate, EQC, GLC and additional.
The complete framework is claimed to weigh just 270kg. Having said that, the boost in proportions, the packaging of the rear seats and other developments these types of as the inclusion of a four-wheel drive method for the first time, all lead to a 125kg boost in pounds for the first best-of-the-line SL 63 variant, which ideas the scales at 1895kg. The upshot, on the other hand, is a claimed 50% raise in rigidity above the by now sturdy composition utilized by the GT.
Underpinning it all is a mostly bespoke steel suspension. It uses a new 5-link double-wishbone established-up at the front and a multi-backlink arrangement comparable to that of the GT at the rear, in mix with conventional adaptive dampers and new lightweight coil springs formulated exclusively for this software.
SL 63 prospective buyers also get hydraulically operated anti-roll bars as component of a freshly created Active Journey Regulate package deal. These are a first for AMG, changing the common mechanical bars of the lesser SL 55.
Interestingly, Hermann states the change from the previous MRA platform to the new MSA just one has allowed Mercedes to placement the SL’s axles reduced. He statements this brings about a sizeable decreasing in the centre of gravity when compared with the previous SL.
Whilst a good deal is new, the two twin-turbocharged 4.-litre V8 engines out there from the begin of British isles sales are acquainted ample. The M176 unit located in the SL 55 delivers 469bhp and 516lb ft of torque, propelling it from -62mph in a claimed 3.9sec and on to a leading velocity of 183mph. The SL 63 employs the more greatly tuned M177 device, with 577bhp and 590lb ft, allowing for it to dispatch 62mph from standstill in a a bit sharper 3.6sec and arrive at an impressive 195mph.
As perfectly as an altered ingestion procedure, repositioned intercoolers, a new oil pan, alterations to its crankcase for included cooling efficiency and a modified exhaust, the latter variation of the AMG powerplant advantages from revised active engine mounts. These stiffen and soften in accordance to load, isolating vibrations in the entire body construction and significantly lowering load change.