Here is a nice list of additional items to add into your auto emergency kit if they are not included.
A tire pump or an aerosol tire inflator
A car battery charger that can jump start your car through the car’s cigarette lighter. Amazing devise if its fully charged.
Duct tape and wire to fix a window, a dropped tail pipe, etc…
A fire extinquisher
A first aid kit
A plug in spot light and/or a shake flashlight
A tow rope
For winter gear, a shovel, a scraper, and some traction panels to put under your tires to get unstuck.

