A car bomb is a bomb placed in a car.
It is usually detonated by turning on the engine or pressing a detonation button.
Car bombs have been used in the past by assasins to kill their targets or by suicide bombers. (People who blow themselves up to cause mass destruction)
Wiktionary:Requests for deletion - kept
Kept. See archived discussion of June 2008. 06:09, 7 July 2008 (UTC)