The C510 from one of the most popular semi-truck brands in the United States, Kenworth, is one such behemoth, bursting onto the construction scene in 1998 with a whopping 140-ton payload capacity.

Fun fact, they used a 281 series truck for most of the production ... they’re some of the best-looking semi-trucks ever built. The 379 is still my all-time favorite, but you can’t deny ...

This led to further innovations, which led us to the semi-automatic rifles of today. (Also see the best-selling lever-action rifles in the United States.) To identify the 10 most popular semi ...