7: Mercury Cougar Boss 302
The Mercury Cougar was the corporate clone of the Ford Mustang, which the company had done with quite a few models. The Boss 302 was a performance version of the Cougar that surprised drivers with a powerful engine and bold styling. Like it or not, the Mercury brand did have some winners on their hands, and the Boss 302 was one of them.
There were 169 of the Boss 302 models sold during its quick run, making the car rare. The Cougar underwent a lot of different changes over its lifespan but the Boss 302 was one of the most unique models. To this day, the Mercury Cougar Boss 302 is among one of the most highly sought-after models on the road.