The 1968 Nova SS 350 arrived looking like basic transportation, yet it quietly packed the hardware to run with far flashier muscle cars. With understated styling, a small-block V8, and a curb weight ...

Offering high performance in an unassuming package, sleeper cars have been around for longer than you may think.

Sometimes the best performance cars don’t look fast at all. They blend in, stay quiet, and let the surprise do the talking – ...

Though they looked as average as the mass-produced Olds models they were based on, these performance versions packed a ...

Describing a Honda S2000 as a sleeper may be a bit of a stretch, since even in bone-stock form, it's a hard-core sports car with a 9,000-rpm screamer of an engine. Still, its 2.0L, naturally aspirated ...

Discover the top sleeper SUVs and trucks of 2026 that hide extreme performance beneath family-friendly designs.