The most significant change to the outgoing model is the introduction of the new direct inject 3.6L V6 in the base STS. This powerplant delivers a healthy 298hp (222kW) and 268lb-ft. (371Nm) of twist with drive being sent to the rear wheels via GM’s new Hydra-Matic 6L50 six-speed auto. An AWD version is also available. Not only is the new engine significantly more powerful than the old unit, it also achieves a 25% reduction in cold-start hydrocarbon emissions and only a marginal increase in fuel economy despite a 15% increase in power.
Visual differences include a new grille and headlight design plus side air extractors incorporated into the front fenders inspired by Cadillac’s Sixteen concept car of 2003. Other touches include chrome-plated door handles, color-coded bumpers and a set of polished aluminum exhaust tips. Final pricing will be announced closer to the car’s launch date, which is scheduled towards the middle of the year.
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