Eighteen year-old mud bog driver Colby Hensley poses for a photo in front of his 1974 Dodge Power Wagon after winning his class at the State Line Mud Wars August 25, 2018 in Gaffney, SC. Hensley's father gave up racing the Power Wagon when Colby was born, but the younger Hensley brought it back to the mud pits after his sixteenth birthday. “It’s about the adrenaline rush,” says the teenager from Forest City, NC.