If there's one model that proves that Buick is mending its image, it’s the Regal Sportback. With a plunging silhouette that makes this sedan look like a coupe, the 2019 Regal is relying on a more dynamic image to attract buyers who otherwise wouldn’t consider a Buick. That goes double for the GS version, equipped with a 3.6-litre V6 engine that generates 310 horsepower. This is not your grandparents’ Buick.