The top things one should keep in your car would be-
- Insurance information and vehicle registration
- Food and water
- First-aid kit
- GPS and map
- Booster cables
- Flat tire fixer
- Flashlight
- Cell-phone charger
- Oil
- Tire gauge
If you have a toad then you will have most if not all of these things on the list above.
If you are traveling with only your coach you will have some of the things on the list above already in your Newell.
By looking at that list does anything come to mind that's not on the list, that you would say is a "top item" or a "must have" to keep in your coach?