Short wheelbase Jeeps and Dodge trucks that participate in Jeepspeed® Challenge events. Specs: Vehicles must follow Jeepspeed® specifications under various class types such as Jeepspeed® Challenge Class ( Vehicle number designations: 1700-1799), Intermediate Class (Vehicle number designations: 2700-2799), Jeepspeed® Outlaw Trophy Class (tube chassis with Vehicle number designations: 3700-3799), Jeepspeed® Open Class vehicles with full-custom frames and resembling Jeep or Dodge vehicles (Vehicle number designations: 4700-4799)