Which American company saw its brand value skyrocket during WWII after developing the first mass-produced amphibious vehicle for the military, but failed to successfully convert this brand equity to civilian markets after the war?

During World War II, military equipment manufacturers saw their brand value transform dramatically as they pivoted to wartime production. Some companies became household names through their contributions to the Allied war effort, while their marketing and branding became intertwined with patriotic messaging. Test your knowledge about how these military equipment brands were positioned and valued during this pivotal historical period.

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Willys-Overland (creator of the Jeep)
General Motors (creator of the 'Duck' DUKW)
Chrysler (creator of the Sherman tank)
Ford (creator of the B-24 Liberator bomber)