12: Chrysler PT Cruiser
Teased and released in 1999 as a concept car slated for production, the PT Cruiser changed the definition of a concept car. The production model was about as close to the concept car as you could get. Every inch of the design was different than anything tried before. It was the first modern five-door wagon with a contemporary design that paid tribute to the past (via Consumer Reports).

Before the PT Cruiser, automakers were trying to erase the past but the PT embraced it. There were clubs founded around this car and its unique looks. There were also special-edition PT Cruiser models that came later on, such as the California Edition. The latter part of the 1990s was home to many unique concept cars, but the PT Cruiser is unique in that it became a reality a few years later.