Why is a tank called a tank? I'm talking about the military vehicle. The first tanks appeared in World War I. The British didn't want German spies to figure out what they were working on so they claimed to be constructing water tanks.
While we're at it, where did the name Jeep come from? They were first supplied to the U.S. Military by a company called Willy's as General Purpose Vehicles. General Purpose became GP. GP Became Jeep and a brand was born. The company (Willy's) was located in Toledo , Ohio. It eventually was absorbed by Nash Motors which became absorbed by American Motors which was absorbed into Chrysler Corporation which is now Fiat Chrysler Automobiles (FCA). Jeep is FCA's most profitable brand. The main plants are in Toledo.
1940s Jeep
2011 Jeep Wrangler
Ok...last one. Since we are talking military vehicles, where did Hummer come from? In 1979, the U.S. Military held competitive bids for a company to design and build specialized in-field personal carriers. A subsidiary of American Motors, AM General, won the bid with their concept for the "High Mobility Multi-Purpose Wheeled Vehicle", or HMMWV. It quickly came to be known as the Humvee, and later Hummer.
Here's a military spec Humvee
And the publicly available street legal version (this one belongs to Arnold Shwartzenegger)
And one of the last production Hummers from GM's ownership of the brand