The 2000s were a golden age for sleeper muscle cars, like the four-door sedan that kicked off Hyundai's luxury sub-brand.
The CTS-V wagon was Cadillac at its most unhinged. From 2011 to 2014, GM stuffed the 6.2-liter supercharged LSA V8 into the second-gen CTS body, giving the wagon 556 hp and the choice of a 6-speed ...