AMC Gremlin

Wikimedia/CZmarlin

AMC Gremlin

Introduced: 1970
Design: Richard A. Teague

Introduced on April Fool's Day, the Gremlin was ugly, but it's had its fans. Still, that doesn't excuse the abruptly angled back end, saucer hubcaps, and aborted rear windows. It also came in some nasty colors, like the brown-copper concoction seen here.