A “sleeper” is a fast car that most people don’t know is fast. But what are some sleepers that even car enthusiasts don’t know? The Tesla Model 3 Performance is a great choice, hitting 60 mph in under three seconds. Some other “true sleepers” include the Kia EV9, Ford Taurus SHO, Mercury Marauder, Toyota Camry V6, and Volvo V60 Polestar Engineered.