Mercedes-Benz AMG on Wednesday unveiled a brand new model of its redesigned SL convertible, one powered by a 4-cylinder engine.
The automobile slots in roughly the place the V-6-powered SL 400 used to take a seat, although its availability within the U.S. is but to be confirmed.
Underneath the hood is a 2.0-liter turbocharged inline-4 that generates 381 hp by itself and might obtain a brief 14-hp increase from a mild-hybrid system. Whereas that is nothing new, the engine’s turbocharger is an electrified design much like what’s utilized in Method One.
We have seen automakers supply engines with electrical compressors, the place an electrical motor is used to spin a compressor that helps ship increase strain to an engine throughout low revs, with a standard turbocharger taking on as soon as revs construct. The result’s robust engine response from idle, one thing you do not usually have with turbocharged engines.
Mercedes-Benz AMG SL 43
Mercedes-Benz AMG SL 43
Mercedes-Benz AMG SL 43
Within the case of the SL 43’s engine, the electrical motor is built-in straight with the turbocharger, sitting between the turbine wheel on the exhaust aspect and the compressor wheel on the consumption aspect. In F1, the electrical motor can also be used to get well power from the exhaust when increase is not required, although this does not look like the case within the SL 43.
As an alternative, the electrical motor right here depends on power recovered from the automobile’s mild-hybrid system. This 48-volt system is actually a beefed-up electrical starter motor in a position to support the engine throughout excessive hundreds and get well power beneath braking.
In contrast to the V-8-powered SL 55 and SL 63, which include customary all-wheel drive, the SL 43 comes with rear-wheel drive solely. A 9-speed automated transmission is frequent to all variations. Utilizing launch management, Mercedes claims the SL 43 will dash to 62 mph from relaxation in 4.9 seconds and high out at 170 mph.
We’ll see this identical engine setup filter throughout to extra fashions from the AMG portfolio, together with an up to date compact vary and redesigned variations of the C 63 and GLC 63. Within the C 63 and GLC 63, the engine will probably be paired with one other electrical motor to assist ship a mixed output of greater than 600 hp.
