Vehicles

"You were killed by an exploding vehicle. Cars on fire are likely to explode."

Cars are static, destroyable objects in the Call of Duty series.

Purpose
Cars are environmental objects on the various multiplayer maps and single-player levels in the Call of Duty series. They can either take the form of civilian cars (Call of Duty 4: Modern Warfare) or trucks (Call of Duty: World at War). Cars are littered across the maps (usually on the streets) and can easily be destroyed with explosives, light machine guns, etc. Be careful...when cars are badly damaged, they tend to be on fire. Cars on fire will eventually explode, which is enough to kill or badly injure you. This puts you at great risk whenever you decide to hide behind a vehicle and can cause great frustration, especially if you were killed in either the Multiplayer or Singleplayer levels due to this.

Exceptions
Not all cars are stationary objects. One exception is the car you are in in the Call of Duty 4: Modern Warfare level The Coup. Another exception is the car seen in the Call of Duty: World at War level Vendetta, in which General Amsel rides in at the start and at the end when you are attempting to kill him. He only gets in the latter if he hasn't been shot dead when it arrives and if the driver hasn't been shot by the player.

Multiplayer
Here is a list of Multiplayer levels containing cars.

Call of Duty 4: Modern Warfare
*District
 * Crossfire
 * Backlot
 * Crash
 * Vacant

Call of Duty: World at War

 * Hangar
 * Breach
 * Outskirts

Challenges
Unlocked at Level 18 XP Reward: 50, 100, 250
 * Vandalism I, II, III- Destroy 1, 5, 15 cars.

Unlocked at Level 45 XP Reward: 50, 100, 250
 * Car Bomb- Kill an enemy by blowing up a car near him.