The F-150 might be the best selling vehicle, but are trucks the largest selling segment?
"light-truck share at 51.2 percent with sales up 10.4 percent from last year." https://www.nada.org/Publications/NADADATA/
The light duty truck classification has to do with loaded weight rather than anything else as far as I remember... But maybe that has changed also?
From the accompanying graph, it looks like the definition of "light-truck" includes crossovers, SUVs, vans, and pickups.
https://www.nada.org/NR/rdonlyres/AAD0D79A-7C46-489F-B738-81...