I have a 2021 X3. When driving in comfort or eco mode, the engine starts to vibrate when I cruise at about 1000 to 1200 rpm. I do mostly city driving so I cruise at about 45 to 60 km (25 to 35 mph) most of the time. The car only has about 1500 km on it. There is no vibration when I'm driving in sport mode becasue the tac rarely settles at 1000 rpm. Anybody else with a similar issue?