Consumer Reports suggests driving with AC on, opening windows briefly, and adjusting AC settings to cool a hot car quickly.

Cool down a hot car quickly with these tips from Consumer Reports: 1) Start driving & turn on AC, as it works better while moving. 2) Open windows for 10-20 secs to help AC cool the car. 3) Roll up front windows when cold air flows, keep rear windows open for 10-20 secs to circulate. 4) Set AC to lowest temp, adjust fan speed & direction for comfort, turn off recirculation for passengers in the back seat.