Engine 3.6L V6 Gas Horsepower 310 hp Fuel Economy 19/27 ... as it was larger and built as a liftback sedan. 2020 Buick Regal GS Specs The 2020 Buick Regal GS is, by far, the most powerful Regal ...

How big is the 2020 Buick Regal Sportback Preferred II FWD's fuel tank? How efficient is a 2020 Buick Regal Sportback Preferred II FWD? The 2020 Buick Regal Sportback Preferred II FWD has a 62 L ...

The Regal name disappeared from Buick’s lineup when both the Sportback and TourX were discontinued after the 2020 model year and ... electric motor for improved fuel economy, while the GS ...