About: http://webisa.webdatacommons.org/50078929

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I suggest that this vehicle was a one-off, and that the cylinders actually contained natural gas; that would at least explain their horizontal installation.
http://www.w3.org/ns/prov#wasQuotedFrom	douglas-self.com