Gas equivalent: Buick Regal (Base price: $30,635)
Savings on a hybrid: 5% Buy a Buick Regal Hybrid and you'll save more than 5% on the MSRP while getting roughly a third better fuel economy than what a gas-powered Regal offers. Another "mild hybrid," the Regal Hybrid scores an estimated 25 mpg/city and 36 mpg/highway. That's well above the 18 mpg/city and 29 mpg/highway you can expect from a gas-only Regal base model with automatic transmission. The Regal Hybrid also comes with a long list of upscale standard features, from leather upholstery to heated front seats. "That's a good deal," Clarke says.