Average Used Price: $14,525 The 2013 Dodge Charger SRT8 represents the most powerful V-8 muscle car that can be picked up for under $15,000, and it may be due to some four-door bias among collectors.

According to Dodge, when guzzling up the ethanol-rich fuel, the Demon runs the quarter mile in 8.9 seconds at 151 mph (243 kph), which makes it the quickest factory-built muscle car of all time.