I have had 3 technicians check my car. The third one says its normal and that I should not worry about it. Even though if I roll down the window on the highway then roll it back up it does not seal. I can stick my fingers in that gap. My car is in the shop and the loaner is the same exact model 3 and mine. It does not exhibit this issue at all. Has anyone else experience this and know how to resolve it?