What is it? It's getting a bit long in the tooth, but can Mercedes's SLK55 AMG, the entry point into high-performance Merc ownership, still hack it with today's best roadsters? Like the bulk of ...

(More photos and AMG's full press release are after the jump) As the only eight-cylinder roadster in its segment, the Mercedes-Benz SLK 55 AMG delivers an exceptional driving experience.

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 ...