What’s the best way to insulate my car with a broken passenger window. It’s -33 where I live today?
Oh don't worry about the window, the car will never start.
Why not just go get your window replaced?
Call that company that comes to you, fixes the window and turns it into your insurance company for you. I have forgotten the name, just google it. Oh right you do not have insurance, right?
Duct tape and trash bags.
Cardboard and duct tape.
any type of thick plastic should do the trick. If you have clear recycle bag, the 30 gallon that would work great. Cover all ends inside and out as the wind will pull at it when you drive. Start from the top and work your way down. Look for holes before you start driving, you don't wanna be busy with this while driving.