Memorable moments of ineptitude; a convertible minivan; James May tries to drive up an Icelandic volcano.

Richard Hammond scours the Top Gear archives to relive the team's attempt to cross the English Channel in home-made amphibious cars.

Clips include an attempt to find the best bus for London's streets, and creating a dual purpose combine harvester-based snow plough.

Host Richard Hammond shares more disastrous outcomes, including building the world's first hovercraft van and having a go at launching a Reliant Robin into space.

Relive the Top Gear team's attempts to constructing a V8-powered rocking chair, building Top Gear's own electric car, and making the world's first caravan-based train.

Highlights include creating stretch limos based on European cars, giving a Mercedes S Class a country cottage style make-over, and Jeremy Clarkson making a public information film.

Richard Hammond guides viewers through another batch of the most disastrous outcomes. Building an old, people-friendly car; creating motorhomes suited to British roads.