2009mercedes-benzsl63amg

Click image for photo galleryAs expected, the advent of a new SL also brings with it the arrival of a new AMG variant. Gone is the supercharged, 510-horsepower SL55 AMG. In its place, we welcome the new SL63 AMG, which uses AMG's naturally-aspirated 6.2L V8 making 538 horsepower and 465 lb-ft of ...