
Mercedes-Benz is wasting no time showing off the full range of its all-new SL-Class. On the heels of the SL550 and the SL63 AMG is the mighty 2013 Mercedes-Benz SL65 AMG, set to debut at next month's 2012 New York International Auto Show. Benz's range-topping, V-12-powered menace will be the fastest SL on the market once it arrives in showrooms later this year. Pricing hasn't been released for the SL65 as of yet, but expect a significant jump from the SL63 AMG. The outgoing SL65 stickered for $199,000, while the SL63 was pegged at an MSRP of $139,000 -- a difference of a C63 AMG sedan, give or take a few grand. Following its debut at the New York show, the SL65 should arrive in showrooms in November 2012.


The SL65's secret weapon is its 6.0-liter, direct-injection, twin-turbo V-12, which produces 621 hp and a stump-pulling 738 lb-ft of torque, an evolution of the last-gen SL65's M275 V-12 mill, rated at 604 hp and 738 lb-ft. AMG engineers bolted on new turbochargers that provide up to 22 psi of boost; new manifolds and wastegate channels; and revised cylinder heads -- changes deemed significant enough to warrant the engine's new M279 designation. As with most new models in the AMG lineup, the SL65 will also get an ECO start/stop system. Like the SL63, the SL65 will be limited to a 186 mph top speed. Standard brakes include 15.4-inch discs with six-piston calipers at the front and 14.2-inch discs with single-piston calipers out back.

The side view includes V-12 and Biturbo badges and standard 19-inch rims; a set of AMG forged multi-spoke wheels with 20s in the rear and 19s up front is available as an option. Out back, a rear spoiler sits atop the trunk deck, while square-ish quad exhaust tips provide another subtle hint at the roadster's immense performance capabilities. Inside, the SL65 gets treated to diamond-patterned leather seats. Like the previous model, the 2013 SL65 AMG comes standard with a long list of niceties including a Magic Sky Control glass roof, an Airscarf neck-heating system, a Bang & Olufsen sound system, and heated and ventilated seats.