Third-worst: 1955 BMW Isetta
Perhaps you did not expect to find any BMW products on this list. But BMW "built the atrocious, single-cylinder, 12-hp, one-door Isetta for 7 years," writes. "The whole car was a crumple zone."

Ranked as the third-worst car ever, the Isetta was in the running for worst ever. "It's such a ridiculous automobile," Oldham says. "It has one door, five horsepower and is very narrow in back, almost like a three-wheeler. We can't understand why anyone would want one."

In particular, Oldham says, he cannot understand why the Isetta has become a collector's item that sells for around $50,000.

Historically, the car reflects an effort by a German manufacturer to get back on its feet after World War II. "Fuel was hard to come in Germany at that time, and they made a very small, very economical car," Oldham says.

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