Mercedes-Benz Drops 422-hp Naturally Aspirated Version of New 5.5-liter V8 into 2012 SLK55 AMG

Mercedes-Benz has just pulled the wraps off of the V-8 that will power the 2012 SLK55 AMG. The naturally aspirated 5.5-liter V-8 makes 422 hp and 398 lb-ft of torque in the hot SLK, and will be paired to a traditional torque-converter seven-speed automatic gearbox?not Benz’s MCT transmission, which swaps in a clutch pack in [...]

Sterling Burton Marlin Mark Anthony Martin Jeremy Allan Mayfield James Christopher McMurray