2. 1976 Ford Mustang II Cobra II
The 1976 Ford Mustang II Cobra II presented a menacing appearance and a throaty exhaust note, but its performance was underwhelming due to a modest 134-horsepower 302 V-8 engine and a soft suspension. This combination left drivers disappointed behind the wheel, and the model is often cited as a low point in Mustang history. (hemmings.com)