What is the most common motor vehicle in US?

Determining the single *most* common motor vehicle in the US is difficult due to a lack of a single, publicly accessible database tracking every registered vehicle. Registration data is often fragmented across states.

However, based on sales figures and general observation, pickup trucks, specifically full-size models from manufacturers like Ford (F-Series), Chevrolet (Silverado), and Ram, are consistently among the best-selling vehicles and likely represent a very significant portion of the total vehicle population. It's highly probable that a pickup truck model is the most common, though definitively saying which one is impossible without comprehensive nationwide data.