You're partly right. The top
You're partly right. The top two selling individual nameplates are F-150 and Silverado. However, Trucks stopped being the top segment back in late 2016. GM was the first to acknowledge it in a sales report. Compact crossovers (Rogue, CR-V, RAV4, etc) are the most commonly sold type of vehicle now and they make up the largest segment overall. Full-size SUVs are a relatively small segment. The Tahoe and Suburban combined sell at about 15K units per month. The Rogue sells at over 40 K units per month. Cars like the Camry sell at about 30K to 40 K per month.