If you keep a defensive rifle inside your vehicle, you may be interested in attending one of the many classes offered on the topic of defending yourself in or around a vehicle. Before you do, however, I recommend taking at least a fundamental defensive course with your handgun or long gun before signing up for one of these advanced programs.
When you are ready to take a live fire course around a vehicle, in addition to I.C.E. Training’s classes, I suggest Centrifuge Training and Shivworks coursework on these topics. — Rob Pincus