Here's another one
The door RV mirrors are of unequal size, one a lot bigger on the W124s and the 190 and 180Es. Looks very lopsided, but somebody said the designers thought it was better for the driver's view, one mirror being a lot closer than the other to the driver's view. They of course could easily have made both the same size so that the car wouldn't look so funny. If the driver's side was required to be bigger, then make it bigger and follow through with the passenger side. Don't have to say that the angle of view is narrower, so a narrower mirror must be placed there. No wonder they have changed this to equal sized mirrors now from the W202s onwards as no other car manufacturer followed the old design!