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2014 Mercedes-Benz SLS AMG Black Series [w/video]

The biggest misconception about the Mercedes-Benz SLS AMG Black Series is that it's simply a higher-performing version of the SLS GT - a closer look, or better yet, a few hot laps on a high-speed racing circuit, reveals that is anything but the case.
Launched in the States in mid-2011, the standard SLS GT is a 583-horsepower, all-aluminum, gull-wing coupe with performance that positions it near the top of the exotic segment. While the AMG team at Mercedes-Benz could have left it alone, their experience with the SLS AMG GT3 race car said there was room for improvement, so they devised the SLS Black Series. The transformation from SLS GT to SLS Black Series is extensive, with no fewer than 17 different significant enhancements.
The engine mapping, crankshaft, connecting rods, valve-train, intake, exhaust and cooling are all modified and the engine's redline bumps up from 7,200 to 8,000 rpm, which pushes output of the hand-built 6.3-liter V8 to 622 horsepower. The power steering receives a new ratio, a coil-over AMG Adaptive Performance suspension is installed along with underbody braces, the track is widened, two-piece carbon-ceramic brakes replace iron rotors at each corner and a lightweight titanium exhaust is fitted beneath. The AMG Speedshift seven-speed dual-clutch gearbox is modified and an electronically controlled AMG rear differential lock ensures the power goes to the pavement. Last on the mechanical upgrades are new lightweight forged wheels (10x19 inches front and 12x20 inches rear) wrapped in special R-compound Michelin Pilot Sport Cup tires.

2013 Mercedes-Benz SL65 AMG

Make way for the 2013 Mercedes-Benz SL65 AMG, the most wonderfully preposterous car I have ever driven.
There is absolutely no reason why any two-seat roadster should be fitted with a twin-turbocharged 6.0-liter V12 developing 621 horsepower and 738 pound-feet of torque, but I sure am glad that Mercedes-Benz doesn't see things that way.
Drop into the leather-lined cockpit of this $213,145 provocateur, floor the accelerator pedal as I did over and over again, and 60 miles per hour falls in a traction-limited 3.9 seconds. Top speed has been electronically held to 186 mph (this apparently saves Gulfstream jet owners from embarrassment). Forget the SL550 and SL63 AMG, the valets will trip over themselves attending to the tycoon driving this thoroughbred - it's the real deal.

Mercedes to roll out S65 AMG Coupe in July

We're still a couple of weeks away from the public debut of the new Mercedes S63 AMG Coupe at the fast-approaching New York Auto Show, but already we're receiving word of an even more powerful version in the works. That, of course, would be the S65 AMG Coupe - the twelve-cylinder version of the latest S-Class Coupe, two-door counterpart to the S65 AMG sedan and replacement for the outgoing CL65 AMG.
Like the four-door version rolled out back in November, the S65 AMG Coupe would be distinguished from less powerful vehicles (which, lets face it, is just about everything) principally by its engine: a massive, 6.0-liter twin-turbo V12 that produces 621 horsepower, 738 pound-feet of torque and cares as much about global warming as an oil-shipping mega-tanker.
Because Merc's 4Matic all-wheel drive system can't handle that much torque, the ne plus ultra coupe would (like the S65 sedan but unlike the S63 coupe) be offered only in rear-drive form. That means it will have that much more trouble getting the power down to the road, but since the Magic Body Control suspension is similarly incompatible with 4Matic, the flagship coupe will get that trick suspension.