How to dry out my car safely and quickly? But it is raining outside.....?

Turn the car heater on for a little while with the windows cracked so the moisture has somewhere to go. Oh ya, wipe the window condensation as well.

Buy a burlap sack of rice and put it in the back seat for a day or two.

Just use a terrycloth towel to sit on. It will dry in its own good time.

wet/dry vac is your best bet...that or let the heat run on full in your car and close up your car