Berlin (dpa) — Mercedes’ best-selling model for some years has been the GLC, a crossover SUV that competes against cars like the Audi Q5 and the BMW X3. Now the latest version is out and comes with a few changes while keeping the features that have made the car popular. Although Mercedes, like most manufacturers, is gearing up for an electric future, the German manufacturer knows that the combustion engine will still be needed for a few more years. The GLC comes with diesel and petrol power units as well as plug-in hybrids but there’s no all-electric version. A little more car for a lot more m…