4x4 circuits

Monster Jam

Monster Jam is a live motorsport event tour and television show created by Live Nation (formerly Clear Channel Entertainment). The series is sanctioned under the umbrella of the United States Hot Rod Association (USHRA) and takes place primarily in the United States. Although individual event formats can vary greatly based on the "intermission" entertainment, the main attraction is always the racing and freestyle competitions by monster trucks.

http://www.monsterjamonline.com/