5. Ford Mustang 7 Up Edition
The story about 7 Up Mustangs is one of the more bizarre tales in the long history of America’s favorite pony car. In 1990, the soft drink manufacturer, 7 Up made a deal with Ford to purchase 30 special edition convertibles as giveaway cars. But for some unknown reason, the deal fell through.

So Ford was left with 30 cars, so they decided to sell them as a special version. The response was so good, the factory decided to produce approximately 4,000 more. All of them were dark green LX convertibles with white interiors and 5.0 V8 engines.