For the full review of the 2013 Mercedes-Benz GLK250 visit AutoGuide.comThings are heating up in Stuttgart, and it’s not just föhn wind blowing over the Alps. Unlike this warm, allegedly sickness-inducing Mediterranean breeze, Mercedes-Benz is cool and in fine health, with steadily increasing sales and market share. To continue this growth the company is preparing to pounce with a passel of fresh products, including a diesel-powered midsize utility vehicle in America, The GLK250 BlueTEC.