18. Pontiac Aztec
When Pontiac introduced the Aztec in 2000, it was a good idea, at least on paper. The mid-size crossover model with its sharp new styling, decent engine lineup, and interior space was a modern concept at the time. Pontiac was eager to present it to the public since overall sales of the brand were poor. They thought the new model would boost the popularity of the brand and bring new customers to the dealerships.
The plan was sound, except for one thing, the design. Somehow, those Pontiac designers managed to draw and push to production one of the ugliest cars ever made. Even from this distance and 17 years after the first Aztek saw the light of day, it’s still a design that makes no sense whatsoever.