Buick Canada has revealed its latest Regal GS Sportback, the high-performance variant of the redesigned model that first broke cover in April.

The GS badge adorns the same hatchback body style as lesser Regal models, notable for its 892 litres of cargo space behind the rear seats—nearly double the trunk capacity of the outgoing Regal sedan.

Where the GS differs is under the hood, where you’ll find a 3.6-litre V6 making 310 hp and 282 lb-ft of torque, a bump of 51 hp compared to the 2.0-litre turbocharged four-cylinder used in the regular-grade Regal. That engine comes matched with a nine-speed automatic transmission and standard all-wheel drive that can shuffle power between the left and right rear wheels.

Buick says the Regal GS is aimed at competitors like the Acura TLX A-Spec and Lexus IS 350; at a bit more of a stretch are German sport sedans like the Mercedes-Benz E 400 and Audi A6 3.0. Helping set the GS apart, especially from that latter pair, is a starting price of $45,495, which undercuts Buick’s German competition while including more standard luxury features.

The GS also gets performance seats with heating, cooling and massage functions, continuous damping control suspension with driver-selectable settings, trim-specific front and rear fascias, side skirts and rear spoiler, 19-inch wheels, performance brakes with Brembo calipers, sport exhaust and a heated flat-bottomed steering wheel.

Infotainment features include an eight-inch central touch screen that supports Apple CarPlay and Android Auto, and another eight-inch display that serves as a configurable instrument cluster.

Options include a Driver Confidence II package that brings in a full-colour head-up display, front pedestrian braking, lane keep assist and lane departure warning, forward collision alert, and adaptive cruise control with forward automatic braking.

Buick hasn’t specified an on-sale date, but we expect the Regal Sportback, in standard and GS trims, will go on sale later this year.