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Buick Grand National, GNX to Return on Cadillac ATS Platform

After filling its lineup with small, proper, four-cylinder cars over the last couple of years, General Motors may finally be getting back to its gnarly roots.

First came the 2014 Corvette Stingray, a lean, muscled-up 450-horsepower ‘Vette in a European suit.

Next was the Chevrolet SS, an old-school, rear-wheel-drive full-size sedan with a 415-horsepower Corvette-derived V-8 under the hood.

Now comes a report from Inside Line that Buick is considering resurrecting its high-performance past with new versions of the Grand National, GNX and the T-Type.

And unlike some previous GM attempts to go back to the future, these cars won’t be weak-kneed frauds hiding behind iconic badges.

All would be based on architecture borrowed from the new rear-wheel-drive Cadillac ATS, Inside Line says, which is a pretty darn good place to start.

The T-Type and Grand National would likely share powertrains – probably a twin-turbocharged 3.6-liter V-6 good for 350 to 400 horsepower, Inside Line says.

Even better, the GNX might get a version of the all-new LT1 small-block V-8, which supposedly will fit into the ATS’ engine bay, according to Inside Line.

Cadillac is believed to already be at work developing a high-performance V version of the ATS that may be equipped with a V-8, so the hot-rod Buick might not be much of a stretch.

And how much energy would a new GNX bring to a Buick showroom full of LaCrosses, Regals and Enclaves?

(courtesy of the Dallas Morning News)