14 More Great Sleeper Cars

14. 2015 Buick Regal GS

Buick has historically been a brand that was about entry-level luxury, generally making vehicles a few slots beneath what Cadillac offers. Due to this, Buick is not known for powerful sports cars and when people see them at a stop light, they might not expect them to be fast. That makes the Buick Regal GS a good choice for a sleeper. Powered by a 2.0 liter turbocharged four-cylinder engine, the Regal GS has 259 horsepower and 295 lb-ft of torque. It might not be able to blow to doors off some high end sports cars, but the Regal has more than enough power to handle your average sports car. The interior is nicely designed as well, so you’re not sacrificing comfort for power.