The Sears Centre Arena in Chicago (Hoffman Estates) hosted two big shows of the E3 Spark Plugs Monster Truck Nationals Presented by Lucas Oil.  Outback Thunda made its first U.S. appearance driven by Clive Featherby.  The crowd loved the Aussie!  Heavy Hitter had some knockout runs and picked up the Freestyle win on Sunday.  Bobby Holman in the Lucas Oil Stabilizer electrified the crowd with on-the-edge (and over the edge) hits.  Check out all the highlight clips.