Mercedes-Benz has commissioned designer Gareth Pugh and fashion photographer Nick Knight to bring the duo’s “avant-garde cool” to help promote its latest sports coupe, the SLS AMG. Gareth Pugh dressed German model Julia Stegner in sculpted, armor-like leggings, a corset and a shoulder piece in black patent leather for the shoot. According to WWD, Mercedes-Benz said it aimed to create a “highly modern visual language,” the campaign will break on posters, banners and billboards for Berlin and New York Fashion Week in January and February, respectively. Interesting…