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This time, the leak comes from within Buick.

We're still a couple of weeks away from the Buick Regal GS' official unveiling. We're not supposed to know much about the sedan, but information leaked by the company's very own magazine has confirmed a few key technical details.Spotted by GM Authority, the summer 2017 issue of B (the magazine Buick publishes for owners and enthusiasts) confirms the hot-rodded GS will arrive with about 310 horsepower under the hood. An earlier leak -- this time attributed to Buick's Canadian division -- confirmed the cavalry will be provided by a version of General Motors' 3.6-liter V6 engine. The six-cylinder will spin all four wheels via an automatic transmission.

The blurb in B also reveals the GS will receive continuously variable damping control and three driving modes named Sport, Touring, and GS, respectively.

Visually, the GS will stand out from the regular Regal Sportback thanks to a model-specific grille, unique wheels, and a more aggressive-looking body kit all around. Inside, Buick's next sports sedan will offer Jet Black upholstery.

On paper, the 2018 Regal GS sounds like the hottest Buick sedan in recent memory. However, we'll reserve our judgement until we see it in the metal. Stay tuned, an official unveiling is scheduled in the coming weeks.