When a
vehicle is reduced to 0
hit points, it is disabled. Although it might be repairable, it ceases functioning. A
vehicle that is disabled while
moving drops one
speed category each round until it comes to a stop. The
driver cannot attempt any maneuvers except a
45-degree turn.
Unlike characters,
vehicles don't "die" when they reach -10
hit points. Instead, a vehicle is destroyed when it loses
hit points equal to twice its full normal total. A destroyed vehicle cannot be repaired.
Exploding Vehicles: If the attack that disables a
vehicle deals
damage equal to half its full normal
hit points or more, the
vehicle explodes after 1d6 rounds. This explosion deals 10d6 points of fire
damage to everyone within the
vehicle (Reflex save, DC 20, for half
damage), and half that much to everyone and everything within 30 feet of the explosion (Reflex save, DC 15, for half
damage).