In 2016 about three million new vehicles were sold to fleets (rental car firms, corporations, utility companies, government agencies), and 14 million were sold in retail sales (all non-fleet sales). Cars were a greater share of 2016 fleet sales (44%) than retail sales (30%), while sport-utility vehicles were a greater share of retail sales. Pickup trucks accounted for a larger share of retail sales than fleet sales, but minivans accounted for a larger share of fleet sales. The difference in the make-up of retail and fleet sales is partly because manufacturers often sell vehicles to fleets that are not as popular in retail sales.
Retail versus Fleet Sales by Size Class, 2016

Note: Vehicle sales are for 2016 calendar year.
Source: Crain Communications, Automotive News, "Mixing It Up" July 31, 2017.