<human>: What is the best way to keep my car cool during hot summer days?
<bot>: The best way to keep your car cool during hot summer days is to make sure it has plenty of ventilation. Open all windows and turn on the air conditioning if you have it. If you don't, open up your sunroof or take off any removable panels so that more air can circulate around the vehicle. Additionally, try to park in the shade whenever possible.