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8/23/2011

Mercedes-Benz Unveils New 415-hp SLK Roadster


How fast do you want to get where you’re going and how good do you want to look once you get there? These are questions the new 2012 Mercedes-Benz SLK55 AMG are likely to settle once it arrives in dealers’ showrooms early next year.

Based on the small-and-sultry two-seat SLK roadster that’s recently undergone a major makeover as an early model-year 2012 release, the SLK55 AMG somehow wedges a 5.5-liter V8 engine under its diminutive hood that packs a wallop with 415 horsepower and 398 pound-feet of tire-smoking torque. The engine features high-pressure direct fuel injection to help boost both its power and fuel economy and can shut down half its cylinders when not otherwise needed (such as at cruising speeds) to further maximize its mileage. A seven-speed automatic transmission that includes three separate operating modes is the only available gearbox.

Mercedes claims the 2012 SLK55 AMG will sprint to 60 mph in a mere 4.5 seconds, with an electronically limited top speed of 155 mph.

The SLK55 AMG is stylistically distinguished from the rest of the line with its unique AMG-designed body cladding and rear spoiler, aggressive-looking AMG alloy wheels and twin chromed tailpipes that add to both the car’s visual and visceral appeal. The latter feature integrated exhaust flaps that deliver an appropriately throaty roar when the accelerator pedal is put to the floor, but can operate more discreetly at moderate rates of velocity.

Other performance-minded enhancements include an AMG sports suspension with Torque Vectoring Brakes that engage the brakes slightly on the inside rear wheel while cornering in order to, as Mercedes explains it, “produce a defined rotational movement of the vehicle about the vertical axis.” Translated, this means the SLK55 AMG should afford truly quick handling abilities. What’s more, the car’s Electronic Stability Program includes a “Sport Handling” mode that delays intervention to afford a bit more tire “drift” through the curves and a full-off setting for accomplished drivers who know how to let it all hang out (the car’s back end, that is) around the corners without incident.

And for those who are somehow left wanting for more in the way of performance, an optional AMG Handling Package will toss a stiffer suspension, rear axle differential lock and upgraded brakes into the mix.



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