Filed under: Coupe , Performance , Plants/Manufacturing , Mercedes-Benz Mercedes-Benz kicked off production of the SLS AMG this week in preparation for its March 27 on-sale date in Europe, and unlike the SLR that was built in the UK by McLaren, the gull-wing SLS is rolling out of Mercedes’ main Sindelfingen plant in Germany. Sindelfingen is handling the final assembly of the SLS with two other factories also contributing major elements to the build process. The Magna Steyr factory in Graz, Austria is producing the aluminum bodyshell and chassis, which weighs in at just 531 pounds, while the technicians at the AMG shop in Affalterbach, Germany are hand building the 571 horsepower 6.3-liter V8 engine.