This study attempts to assess the composition of the U.S. vehicle stock based on existing data sources and educated speculation. The findings include: Of the total number of registered vehicles, residential vehicles accounted for 83% : Passenger Cars accounted for 72% Pickups accounted for 17% Sport-Utility accounted for 5% Large Vans accounted for 3% Minivans accounted for 3% Of the total number of registered vehicles, nonresidential vehicles accounted for 17% : Business fleets operated 49-55% State, county, and municipal government operated 10% Federal government operated 2% Of the 30.2 million nonresidential vehicles, around 45 to 51% cannot be accounted for by any existing data source. (Note: Data will sum to more than 100 percent because there are government vehicles included in the "Business fleets" and "Unaccounted for" categories which cannot be separated out.) To View and/or Print Full Report or Section (requires Adobe Acrobat Reader) - Download Adobe Acrobat Reader Overview Vehicle Stock Section (file size 58,112 bytes) pages--11. Full Report (file size 838,356 bytes) pages -- 161.   Top of Page Return to: Households, Buildings & Industry Energy Use in Transportation File Last Modified: June 17, 1998