First Aid Kit for Your Car

What happens if a nuclear disaster occurs, you get stuck on a road trip, hiking/camping accident, or the road trip with the mother in law that won't shut up happens?? You need a first aid kit in case someone gets hurt!! ;-) I opened my car first aid kit and I only have wipies, a heat pad, string, band aids, a glove, ruler, and a small sewing kit. Definitely not prepared enough!!