Remember the days when it used to take a manufacturer months, if not years to develop a high-performance variant of a model? Well, in anticipation of the 2012 Geneva Auto Show the new SL63 AMG has been unveiled just five weeks after the SL550 made its initial debut.
The new SL63 AMG is lighter, more powerful and is up to 30 percent more efficient than its predecessor. Much like the Porsche 911 (991), Mercedes’ most iconic drop-top has turned to an aluminum bodyshell, reducing overall weight by 275 pounds, counteracting the added technological and safety features that contribute to a greater load. Now, the SL63 AMG is not a light car by any means. With a curb weight of 4,059 pounds it weighs just 500 pounds less than a full-size Chevrolet Silverado 1500.
Less mass to accelerate is always a good thing when it comes to a vehicle’s performance, but its even better when less is combined with more, namely in the form of horsepower and torque. For the first time the SL63 AMG will be available with two different power outputs. A standard SL63 AMG comes equipped with the same 5.5-liter twin-turbocharged V8 found in the CLS63, E63 and CL63 AMGs. In its tamest form the hand-built, power plant cranks out 530 horsepower at 5,500 rpm, and 590 lb-ft of torque from 2000-4500 rpm.
For most, this would be more than enough. But if you want to experience the engine’s full potential you can opt for the optional AMG Performance Package. This boosts the output from 530 hp and 590 lb-ft to 557 hp and 664 lb-ft. The added horsepower and torque aids in 0-60 times too, allowing the SL63 AMG to accelerate to the mark in 4.1 seconds, one tenth quicker than without the package. Other changes include AMG performance steering wheel, limited slip differential and red-painted brake calipers.
Putting the power to the rear wheels is the familiar seven-speed AMG SPEEDSHIFT MCT sport transmission found in the majority of AMG models. The four driving modes; Controlled Efficiency (C), Sport (S) , Sport plus (S+) and Manual (M) work in conjunction with a revised and upgraded AMG sport suspension and a new electro-mechanical steering system. Additional options include a locking rear differential, AMG performance suspension and ceramic high performance compound brakes and an increased top speed from 155 to 186 mph.
Exterior design has maintained largely the same as the previous generation. The front has a lower and streamlined appearance. The grill is still emblazoned with the oversized three-point silver star, but fog lights integrated into the lower grill have been replaced with sleek LEDs below the headlights. The rear of the 2013 SL63 AMG has changed more than the front, with taillights that are almost entirely red in color. The rear diffuser has been significantly reduced in size, and the AMG sport exhaust tips have changed from round to a trapezoidal shape.
The SL63 AMG will go on sale later this year. If you’re looking for a premium luxury roadster with plenty of creature comforts, and performance that will keep pace with all but the fastest Porsches, this might be the vehicle for you. However, you better have deep pockets. Although no pricing has been announced you can expect a base MSRP in-excess on $140,000.
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