MILFORD, Michigan — In a reversal from the latest trends, Buick has upsized the engine in its second-generation Regal GS, now a five-door hatchback, to a 310-horsepower naturally aspirated 3.6-liter V-6, from the first generation’s 2.0-liter turbo four. The new engine — General Motors’ all-new 3.6-liter V-6, which made its debut in the Cadillac CT6...
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First Look: 2018 Buick Regal GS appeared first on
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First Look: 2018 Buick Regal GS
