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This American four-door is a track monster that’s shockingly practical

BMW has M. Mercedes has AMG. Cadillac’s answer is V-Series —and it’s always been the quiet menace of the luxury performance ...
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The practical four-door that doubles as a weekend track star

Add recalibrated MagneRide dampers and a retooled electronic limited-slip differential, and the Precision package-equipped CT5-V Blackwing becomes that much more of a track star garbed in a luxe ...