15 Unassuming Cars With Hidden, Powerful Engines

2. Buick Regal GS

At first glance, the Buick Regal GS appears to be just another midsize sedan. However, its 2.0-liter turbocharged engine unleashes an impressive 270 horsepower, propelling it well beyond ordinary status.
The Regal GS surprises with sharp handling and a refined chassis, challenging preconceptions about Buick’s performance credentials. It stands toe-to-toe with sportier rivals like the Acura TLX, while remaining subtle enough to fly under the radar. [Source]