The 1970s saw a boom in RV travel in the US, despite the 1973 fuel crisis. Key models included the Winnebagoⓘ Brave motorhome with its distinctive "Beetle Brow" design, the painted-aluminum Airstreamⓘ Argosy travel trailer, the Apollo Neptune motorhome promoted by Bob Hope, the streamlined GMC Motorhome, and the Volkswagen camper van.