Did Holden accidentally reveal the Panamera-inspired Buick flagship in a new promo video?

An old rendering or a mysterious new model?

General Motors North American President recently said he wanted a Buick flagship that would be a "more beautiful [Porsche] Panamera" and a mysterious model with Panamera-inspired styling has just made a surprise debut in Holden's "Here to Stay" video.

While it's impossible to connect the two events, the picture shows a mysterious car with a Panamera-like rear end. We can also see muscular fenders, a dual exhaust system and what appears to be a rear hatch.

To add interest to intrigue, rumors suggested Holden was working on a Buick that would be based on the 2017 Commodore. Little is known about that particular model but it is reportedly a front-wheel drive sedan with a four-cylinder engine.

Source: Holden