The big news for 2013 is the debut of the optional Designo style package, offered in a trio of single-tone and two-tone color combinations with a distinctive diamond-quilt stitch pattern on the seats and door panels. Of course, buyers can still enhance the ambience further with the interior carbon fiber trim package ($9,000) and the 1,000-watt Bang & Olufsen audio system ($6,400). to spot the differences between the 2012 models and the new 2013 edition. New high-gloss black trim adorns the grille, hood, front fenders, and mirrors; headlamp and taillamp lenses are dark-tinted; and red-painted brake calipers shine from behind the fine spokes of new wheels. And of course, the letters GT appear with the AMG logo on the trunk lid. Both the topless and Gullwing GT will blast from zero to 60 mph in 3.6 seconds, a tenth quicker than the outgoing cars, and hustle on toward the same electronically limited top speed of 197 mph.

Mercedes hasn’t announced pricing yet, but expect the 2013 SLS AMG GT models to elbow the 2012 coupe and roadster’s base figures—$189,600 and $196,100, respectively—by at least $5,000. Consider it the price of progress. for more details check out mbusa.com