If we ask you, can you describe the Mercedes-Bens SLK 55 AMG, what will you answer? Here are some choices of words: sportscar (obviously), sleek, masculine yet feminine, fine work or art, and expensive. The fist time we heard about the SLK 55 AMG, our head was filled with imaginations in the form of the overall look and of course, the engine. Just thinking how the engine sound would be makes us shivering.
You know what kind of engine powered the Mercedes-Bens SLK 55 AMG sportscar, don’t you? To refresh your memory and we just never bored to mention this one particular engine over and over (and over) again. The naturally aspirated M157 5.5L V8. The “M157” code feels like we refer to some kind of secret code name on the James Bond movie.
Don’t be fooled by the “naturally-aspirated” because when it comes to the SLK 55 AMG, Mercedes-Benz never seemed too stingy. We pretty much aware here that this engine is replacing the old 6.2L V8, but we also have no doubt that the three-pointed engineers are doing their best to give – at least – the same amount of power despite cut down the size engine into 5.5L. Now, what have the engineers done to make the Mercedes-Bens SLK 55 AMG still be one of the most wanted sportscar?
The answer to that question will be “twin-turbo”. Yup… the SLK 55 AMG has 5.5L V8 naturally-aspirated engine with twin-turbo or we usually refer as the “dynamic duo”. It doesn’t stop there because Mercedes loaded the sportscar with more sophisticated performance parts namely variable valve timing, direct injection, stop-start button, and the highlight feature of all – the Cylinder Management courtesy of AMG. This unique system has functioned to send all 4 cylinders to at rest – Mercedes refers it as “sleep” – when they are not in used.
Those not-so-complicated engine and performance system under the hood of the Mercedes-Bens SLK 55 AMG guarantee to give fuel economy usage up to 8.4L per 100 km which if we converse it, hit around 28 mpg. Notice that the figure is for “normal” use; as when you take the sportscar for your daily ride. But if you step in the gas pedal on the Autobahn, that’s different story and definitely will set up new fuel not-so-efficient usage figure. Want to take the SLK 55 AMG for a sprint? Not moving your feet from the throttle will take the sportscar from 0 to 60 mph in just 4.5 seconds.