From the front, the Chinese Mercedes-Benz GLC L is identical to the “global” model that debuted last summer. But the rear of the body and interior is redrawn: the overall length has increased by 110 millimeters to 4826 millimeters, the doors, the roof line, the rear fenders and even the roof rails have changed. Even with a five-seater crossover, the back row can be shifted longitudinally.