The GLK250 BlueTec is a diesel-drinking Hermès clutch of a crossover that hit stores this spring as a fashionably late member of the refreshed 2013 GLK lineup. Engine geeks ought to be thrilled by its tech-stuffed 2.1-liter, Benz’s first four-hole diesel in the U.S. since the naturally aspirated one in the 1985 190D. Back then, life was more leisurely with just 72 horsepower and 96 pound-feet underfoot—the GLK250 gives 200 horsepower at 3800 rpm and 369 pound-feet at 1600 rpm. A seven-speed automatic routes the output to a standard four-wheel-drive system. READ MORE ››