21. 92 Mazda RX-7
The RX-7 has a storied history as one of the most iconic sports cars on the road. But the second generation of the car had shortcomings. The overall design was lackluster when you compared it to the previous generation. The car was heavier and the reliability was a bit questionable which lead to many drivers moving onto other sports car brands. The rotary engine has its advantages and disadvantages, such as when the seals blew out while the engine still had low mileage on it.
Some interesting things about this generation were the convertible and the luxury interior. Still, if you want a rotary-powered Mazda, this generation should be passed on.