Detroit Show 2012 Highlights: 2013 Mercedes SL

Mercedes boss Dieter Zetsche has set his company the target of being the world's largest premium car maker by the end of the decade on the eve of the Detroit motor show.Mercedes currently trails class leader BMW in global sales, and Zetsche believes taking leadership of the premium sector, which is expected to grow at an even faster rate than the entire new car market, is key to success."