This special 2013 edition “Black” SLS will include many upgrades, the standard M159 engine, a 6.2 liter V8 power plant with 563 bhp and 648 Nm (479 lb-ft) of torque, will be dialed up to around 600 bhp and 677 Nm (500 lb-ft) of cranking kraft. The Black Series’ 0 to 100km/h sprint is expected to fall below 3.5 seconds, from the standard SLS’s 3.8. Top speed will rise to from 314 km/h (195 mph) to 335 km/h (208 mph).

AMG will achieve that power upgrade by increasing the compression ratio of the engine, creating a new profile for the camshafts and using a larger air intake manifold. But how much power can AMG continue to squeeze out of that 6.2 liter V8? Plenty.

via WorldCarFans

Mercedes is ready to give the world an updated version of their top of the line sports car, the Mercedes-Benz SLR McLaren Roadster 722 S. What can you find in this McLaren upgrade? How about their 650 HP version of the supercharged 5.5 liter V8? This gives the driver a about 627 lb-ft of torque – which frankly is just FANTASTIC. You can expect to get from 0 to 60 in roughly 3.7 seconds, with 124 MPH comes in 10.6 seconds and maximum speed of 208 MPH – did we mention it’s a drop top? Is there a downside? Yes – bring your check book because only 150 of these McLaren Mercedes-Benz vehicles will be available for purchase. The line up will probably surpass that of a Black Friday sale at Best Buy.