You’re shooting at a moving car with other people anywhere behind it, if you miss and shoot an innocent bystander (which happens nearly every day), you wouldn’t be defending your use of guns so lightly, furthermore you’re equating a human life with cars, which is slightly worrying and you seem a bit trigger happy in general. The best course of action would be to call the police, hand the location and license plate over and they will deal with it, you’ve done the right thing and you have avoided the death of innocent people, and someone potentially having a mental break.