Gibbs showed off two more concept vehicles, the Biski and the Triski. The Biski is a two-wheeled, road-legal motorcycle using a 55-hp, two-cylinder motor that will allow it to reach 50 mph on land.
Gibbs Quadski Prodrive Watercar Sherp ... Colloquially referred to as "Ducks," these six-wheeled amphibious vehicles served extensively with the U.S. Army and Marines, and the Royal Marines ...