8. Buick Regal (GS)

At first glance, the older Buick Regal blends into the crowd with its conservative styling. However, the GS variant transforms this sleeper sedan into a genuine performance machine.
Equipped with a turbocharged engine, responsive handling, and a finely tuned suspension, the Regal GS delivers driving dynamics that can surprise even seasoned enthusiasts.
As Car and Driver highlights, it offers power and poise typically associated with much sportier-looking rivals.