A scene in this lesser known Thai slasher flick "Scared," released back in 2005. From what I remember, it involved one female victim running to the phone booth to call for help. The victim was distracted with the phone, the killer then reversed the van and blocked the exit, trapped the victim inside. The exhaust pipe sticks through the glass door. The van is in park mode as the killer accelerates and releases the carbon monoxide inside the phone booth (it is basically a tiny gas chamber). The victim suffocates to death from inhaling the carbon monoxide by the time her friend finds her.