The worst: 2001 Pontiac Aztek
Our winner is not only extremely ugly, but also has a singular distinction: it destroyed an 84-year-old automaker.

"Only hours before we went live with the list did we settle on where the top three would settle out," Oldham recalls. "We decided that none of the other 99 cars on the list had such a negative impact on such an established and successful brand. The Aztek became such a punchline for a bad car that Pontiac was damaged goods. After the Aztek, GM couldn't save Pontiac no matter what they did."

The car is hideously ugly, Oldham says, adding: "The joke is that the styling is its best feature."

-- Written by Ted Reed in Charlotte, N.C.

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