Among his notes:
Using small arms is often preferable to using the vehicle in a defensive fight, as many cars are designed to shut off in case of even a minor accident. For example, Ford Crown Victoria/Mercury Grand Marquis will turn off the fuel pump in case of even a minor rear impact. Running over bikes can cause tire damage which would make high-speed escape impossible or dangerous to the car occupants. Even a small impact at speed can cause the vehicle to lose control and skid out.