An inexpensive knife, a pliers and a box of 22 rim fire at a minimum should always be present in every vehicle.
Add vice-grips and a box of birdshot shells in whatever gauge you regularly use.
I cleaned out my truck this spring and found a mother load. 2 100 round boxes of 9mm. A box of Aguila 22LR, probably 250 left. And a box of 20 GA winchester super sports. I felt like it was Christmas.
