Mercedes has announced that it will launch its 2011 S63 AMG in September this year. The sports sedan is powered by a newly developed AMG 5.5-litre V8 biturbo engine with a peak output of up to 544 to 571 hp and maximum torque of up to 900 NM.

Newly developed engine will have a fuel consumption of 10.5-litre per 100 kilometers, 25% less than the current S63 AM. With the new engine, the S63 AMG makes the 0 to 60 mph sprint in 4,5 seconds, and top speed is limited to 155 mph. But if you add a new AMG Performance package, the 0 to 60 mph sprint will be made in 4,4 seconds, and top speed will go up to 186 mph.

For the new sports sedan, Mercedes has also developed a new MCT 7-speed sports transmission with Controlled Efficiency mode and start/stop function.