DETROIT - When the wraps come off the CT6 sedan in New York next week, nobody will be able to accuse Cadillac of trying to out-German the Germans. Cadillac is taking a decidedly different approach to the full-size luxury sedan category, now dominated by the Mercedes-Benz S class, BMW 7 series and Audi A8. That uber-lux segment always has been long on roominess, horsepower and opulence - consider the cabin-fragrance system in the S class, which also offers an optional 523-hp V-12 engine.
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