11: Ford Mustang SVO
The special edition of the Mustang that had a turbocharged four-cylinder engine was a shock for the pony car market. The car had a good amount of performance, but Mustang purists were confused by this odd edition of the Mustang. As Ford was feeling the pinch from the EPA the company had to downsize the car’s engine.

The SVO didn’t seem to catch on like the GT and the 5.0, which most purists are more acquainted with. The SVO had a lot to offer in terms of quality and the design of the car, but the turbocharged engine was not the most reliable. The car had a lot of shortcomings which lead Ford to cut the SVO pretty quickly.