[S4E3] The Grand Tour Presents: Lochdown is a 1970s American car-focused special set in the Scottish Highlands, featuring Clarkson, Hammond, and May driving a Lincoln Continental, Buick Riviera, and Cadillac Coupe de Ville. The episode focuses on the trio's chemistry, featuring challenging terrain, caravan destruction, and scenic shots of the North Coast 500 while navigating pandemic-imposed restrictions.