Minecart with TNT

A Minecart with TNT is a vehicle which functions as a movable TNT block through the use of a minecart. The TNT can be activated by hitting an Activator Rail. This will start a 4 second fuse. Minecart will explode immediately if it's destroyed by fire, explosion, or destroyed while in motion. It will also explode after derailing and falling more than three blocks.

Trivia

 * It was, at one point, possible to create an enormous crater using several Minecart with TNT's and having them all detonate at the same time.