The Pegaso Z-403 Monocasco was a two-level monocoque coach, fitted with a 125 hp diesel engine asymmetrically mounted amidships, designed in 1949 and built in Spain by Enasa between 1951 and 1957.
Pegaso Z-403 Monocasco brochure page.
The GMC PD-4501 Scenicruiser, manufactured by General Motors for Greyhound Lines, Inc., was a three-axle monocoque two-level coach that Greyhound used from July 1954 into the mid-1970s. 1001 were made
Pegaso Z-403
…Pegaso Z-403 coaches appear prominently close to an aircraft in an airport (actually, Madrid Barajas airport, the coaches belonging to Iberia airlines). PD-4501 Scenicruiser Lage, Manuel. Hispano-Suiza/Pegaso. Madrid 1992. ISBN 84-7782-236-0…
1950s postcard of a Scenicruiser
A preserved Scenicruiser on display in the London Bus Museum during 2013
1955 Flxible VistaLiner (VL100)
A Scenicruiser in Dam Square, Amsterdam, Netherlands in 1961. The bus is promoting American tourism with Pan Am and Greyhound, featuring a cowboy lassoing two Pan Am flight attendants in front of the bus.