Mercedes putting finishing touches on more powerful, turbocharged 6.5-liter V12

Mercedes-Benz’s appetite for power remains unfulfilled, according to press reports in Germany. Not content with the 500 hp delivered by the supercharged 5.4-liter V8 engine found in the SL55, the German carmaker is putting the finishing touches on an even more powerful, turbo-charged 6.5-liter V12.

The new powerplant, offspring of the 60-degree unit used in the upmarket Maybach, produces more than 600 hp along with 723 lb-ft of torque. The new engine is due to appear in a CL65 AMG model slated for launch later this year.
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It will trickle into the SL as the SL65 AMG a year after taking up residence in the CL's engine bay. 723 lb.-ft. of torque is mind boggling.