The Chrysler 300 SRT8 for 2013 is the ultimate sleeper sedan, looking inconspicuously like its six-cylinder sibling but packing a powerful punch with a 470 hp 6.4-liter V8 engine. It rockets from 0 to 60 mph in just 4.3 seconds and can hit 175 mph. With a suspension that offers track, sport, and auto modes, this car is perfect for both city cruising and highway escapades. Inside, it boasts comfy heated seats, a 19-speaker stereo, and a touch screen, though be prepared for a bit of a gas guzzler tax!