According to a recent report, Cadillac's highly-anticipated flagship could spawn a range-topping Buick.

According to a recent report, Cadillac's highly-anticipated flagship could spawn a range-topping Buick.

Details are limited but the model would likely ride on the Omega platform that underpinned the Cadillac Elmiraj concept. When it was introduced, General Motors said it uses "chassis and structural elements of an ongoing Cadillac vehicle development project slated for future production."

There's no word on when the Buick flagship could arrive but the company recently introduced the luxurious Riviera concept at the Shanghai Motor Show. It previewed the company's future styling direction so any potential flagship would likely borrow cues from the sleek plug-in hybrid.

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