A car emergency kit is a first aid kit for your car; it holds everything you may need to keep your car running and to help you out in a sticky situation. Your emergency kit should include jumper cables (which are only effective if you know how to use them), a torch, screwdrivers, pliers, duct tape (perfect for any quick fixes to get you to the nearest petrol station or garage) and an emergency warning triangle which must be placed behind the car if your car has broken down.
Be sure to include a blanket, a few bottles of water and perhaps some non-perishable food in the kit to sustain you if you need to wait for help. But most importantly, a charged power bank.