If you want undercover fun and some speed but don't want to shell out for a new sports sedan, these sub-$25K sleeper cars ...

If you're in the market for a luxurious and affordable sleeper car to tear up the streets, you'll definitely want to check ...

The 1969 Chevrolet Kingswood Estate hid a big-block V8 that turned this grocery getter into a proper sleeper and put muscle ...

This 1963 Dodge Polara 500 may not be a factory-original Max Wedge rarity, but it's one of the coolest tributes out there.

YouTuber Calvin Nelson, aka Nivlac57, builds drag race and land speed record cars. He's not afraid of putting GM's LS V8s ...

Wagons from the ’90s don’t often get pulses racing, but every so often something genuinely interesting pops up, and this is one of those moments. A Japanese-spec 1999 Mercedes-Benz C43 AMG is now up ...

Hellcat power meets family-hauler as a custom-built Chrysler Pacifica receives a full Redeye swap, transforming a flooded minivan into the ultimate sleeper.

While they may look like ordinary models, these Ford and Mercury-badged rides packed some serious muscle under their hoods ...

This brings us to the fascinating world of sleeper cars – vehicles that pack serious performance under decidedly modest exteriors. These are the cars that most people would never expect to be ...

The rare Oldsmobile Cutlass SX was a luxury muscle car with a powerful secret under the hood. This high-class sleeper was ...