8. Ford Mustang Shelby GT500
The first Mustang to wear the Shelby name in almost 40 years was the 2007 model. The SVT department that conceived the Cobra R models consulted with Carroll Shelby. And it sounded terrifying, thanks to the new 5.4-liter supercharged V8 engine with 500 HP and 480 lb-ft of torque.
This was the first production Mustang to break the magic 500 HP barrier, making it the most powerful muscle car at the time.