1. Japanese and Korean automakers have the top 5 best-selling cars, and have 6 out of the top 10.
2. American companies dominate truck sales, and have 8 out the top 10 best-selling models, and 4 out of the top 5 brands.
3. The top two best-selling vehicles are trucks (Ford F and Chevy Silverado), and of the top 20 best-selling vehicles, 47% are trucks.
