I have a GLS D350. Tires PZero R21/295/40. I bought a new car in November and left the salon immediately on winter tires. And in this rubber, which was from the factory, I "changed shoes" a week ago. I left the Hong Kong Military District on Sevastopolsky Prospekt in Hong Kong and immediately did not even understand what was happening. At a speed of 30-40 km / h, on a slight bump in a normal road, I was shaken from side to side so that I almost lost the steering wheel (I used to hold it with one finger over the winter). I thought it was a sinful thing that the wheel was screwed badly, but no - it's rubber ! So it shakes it in every track, especially until it warms up. I now hold the steering wheel with both hands. Such are the things. Did not expect from MBents. How can you put such a g-but on such a cool car ?!