Mercedes’ Most Potent Track Terrors Explained

Nearly every automaker who plays in the high-performance pool typically goes out of its way to produce at least one or two special models that represent the pinnacle of what the company’s engineers are able to accomplish. These are the most focused versions of a particular vehicle, highly tuned machines that illustrate what’s possible on a racetrack or otherwise when the reins are removed. 

At Mercedes-Benz, for the better part of the past 20 years that torch has been carried by the AMG Black Series, the top dogs of the in-house hot rod division’s lineup. It’s an ultra-exclusive, low-production VIP club that only a handful of Silver Star cars have ever been allowed to join.

Origins of the AMG Black Series  

In 2006, Mercedes-Benz was at something of a crossroads with its AMG division. The hi-po arm of its luxury empire had until that point primarily focused on stuffing enormous power under the hood of any model that the mothership saw fit to send its way, which meant that while there were ultra-quick versions of vehicles as diverse as the C-Class and the SL-Class, few of these models could lay claim to the same kind of focused handling and balanced performance delivered by the most dedicated high-performance versions of the Porsche 911 or even the Chevrolet Corvette.  

At the time, AMG had been working on building a factory race car to compete in a series called The Ultimate Experience Asia, a process that called for the removal of many of the comfort features and extraneous equipment traditionally called for by a roadgoing model. The end result—the Mercedes-Benz SLK55 AMG Tracksport—would serve as the basis for the very first AMG Black Series car.

Mercedes-Benz SLK55 AMG Black Series  

The 2006 Mercedes-Benz SLK55 AMG Coupe Black Series split the difference between the not-so-street-legal aspects of its Tracksport sibling and the need to at least make a gesture toward daily drivability and modern safety regulations. Gone were the racing harnesses pinning driver and (optional) passenger to their seat, the roll cage, and the oversized, trunk-mounted fuel tank, but carried over were the Tracksport’s fixed roof (made from carbon fiber), flared fenders, and lightweight 19-inch wheels. Black Series models are only two doors and traditionally lack foglights. In their place are a plethora of air vents intended to help cool its brakes, which in the SLK55 Coupe Black Series were expanded to six-piston fixed caliper designs up front. 

The SLK55 AMG’s standard 5.5-liter V-8 was bumped to 400 horsepower and 384 lb-ft of torque thanks to a more complicated valvetrain, intake, and exhaust setup. Matched with a seven-speed automatic transmission and a height-adjustable suspension, the car had a top speed of 173 mph and could hit 60 mph from a standing start in 4.5 seconds. Mercedes-Benz only built 120 or so of the original SLK55 AMG Black Series, and none were imported to America.  

Fun fact: Most of the cars came with the mechanism for the SLK’s retractable roof still stuffed into the trunk, a testament to the laziness of dealers who had been charged by AMG with removal duties prior to customer delivery.