NBC10 reports that three cars have been set on fire in the past week at the Princeton Gardens apartment complex on the 7300 block of Germantown Avenue in Mt. Airy. The latest fire occurred Saturday morning. One neighbor told the television station that the fires may stem from a dispute over parking. “We had a nasty note on one of our cars the other day and we moved the car and we don’t know– seems like it’s over parking spaces,” the owner of the torched cars told NBC10’s Byron Scott.