Mercedes Benz with its beautiful designs and precision engineering is in many ways representative of the great achievements of the German motor industry. However it has not always been plain sailing for Mercedes, they have gone through some very difficult times; one such occasion was quite recently, when there were so many concerns about Mercedes reliability that contract hire and leasing companies were reluctant to recommend Mercedes. There was some evidence of contract hire brokers switching potential Mercedes buyers into other marques, such as BMW and Audi. The Mercedes model that was most criticized in the motoring press was the M Class.