Why Can't Car Windows Be Fully Rolled Down?

[LePaisley]

There are several reasons why car windows cannot be fully rolled down: 1. Safety: Preventing windows from fully descending helps protect passengers to a certain extent. 2. Compromise in vehicle design: Due to rear door design constraints where the door's rear section isn't completely straight (often aligned with rear wheels), fully lowering rear windows would cause contact with wheels. This structural limitation prevents complete window retraction into rear doors. 3. Comfort: Partial window retention effectively reduces sunlight exposure inside the cabin, enhancing passenger comfort.