When deerhunting, my uncle would carry a double barrel shotgun, one side loaded with buckshot (a shell filled with BBs, basically) and the other loaded with a "slug" (one big bullet, about half an inch wide).

The first shot would spread out and be more likely to hit a moving target, the second had to be aimed more carefully, but would be more likely to kill quickly. There was a nickname for loading like this, but I can't remember it.

Firing the buckshot at the nearest tire should blow it, as well as peppering the back of the truck with pellets. Then he could shoot out the far tire with the slug.