Mercedes is applying the Black Series treatment to the SLK55 AMG. Power for the new SLK55 AMG Coupe Black Series comes thanks to a massaged 5.5-liter V-8 that now makes 400 horsepower and 383 ...
The SLK55 AMG has yet to go on sale in the UK, but Mercedes has already commenced the marketing effort by letting a modified version of its beast loose as the Safety Car at the British Grand Prix.