Demolition derby is a type of motorsport, usually presented at county fairs and national events. While rules vary from event to event, the typical demolition derby event consists of five or more drivers competing by deliberately ramming their vehicles into one another. The last driver whose vehicle is still operational is awarded the victory. Demolition derbies originated in the United States and quickly spread to other Western nations. For example, Australia's first demolition derby took place in January 1963. In the UK and parts of Europe, demolition derbies are often held at the end of a full day of banger racing.