Columns: No. for season | No. for series | Episode | Airdate | Viewers (in millions)
1 | 43 | "Coast to Coast" | September 3, 2013 | 2.01 | 2 | 44 | "Alaskan Adventure" | September 10, 2013 | 1.45 | 3 | 45 | "Off Road Racing" | September 17, 2013 | 1.54 | 4 | 46 | "America's Biggest Cars" | September 24, 2013 | 1.88 | 5 | 47 | Sturgis | October 22, 2013 | 1.73 | 6 | 48 | Can Cars Float? | October 29, 2013 | 1.58