Jay explores rough terrain with off-road racer Amy Lerner and races ventriloquist Jeff Dunham in an amphibious car. Also: a look at designer Baron Margo' creations.

Jay and comedian pal Jeff Dunham race the fastest amphibious cars on the market, then Jay hits the high seas in a massive Navy hovercraft, fights fire with a vintage steam truck and drives a wet race course wearing a drunk-simulation suit.

Dedicated to the vehicular rule-breakers; Jay cruises in a 1969 Pink Panthermobile and chats with legendary customizer Ed Newton; inside Jeff Dunham's wacky garage; giant art car made for Burning Man; Cadillac-turned-hot tub; car made from cannabis.

Jay and actor Tim Allen debate which vehicles are the most iconic; singer Keith Urban shows off his Pagani, while actor Brad Garrett shows off his Aston Martin; racecar driver Willie T. Ribbs tells stories about his Cadillac.