26. Mazda RX8
The RX8 was an interesting car when it was introduced, not only for its Wankel engine but for its unusual four-door/four-seat configuration. However, despite having up to 280 HP from its rotary engine, it wasn’t as fast as Mazda hoped.
Simply put, the engine didn’t provide much torque for convincing acceleration times and the car wasn’t nearly as light as it should be. Fans called RX8 a disappointment. It’s hardly a surprise that Mazda discontinued the model and didn’t produce a replacement.