GM’s Cadillac brand plans to add a new option to its XTS luxury sedan, a new Twin Turbo V-6 engine. This engine can produce an SAE-certified 410 hp and 369 lb.-ft. of torque.

The new Twin Turbo features a number of upgrades over the 3.6L dual overhead cam V-6 that comes standard in the XTS, according to GM. It features an all-new cylinder block casting, a patented, integrated charge air cooler system with low-volume air ducts, an all-new direct injection fuel system, and tuned air inlet and outlet resonators, aluminum cam covers, and other features that contribute to quietness and smoothness. The automaker hasn't yet released fuel-economy figures for this new engine.

Cadillac said that the twin turbo will be available in the CTS and XTS product lines, and that it will be the “centerpiece” of a new model offering called Vsport.

MSRP for the 2014 XTS starts at $45,525, including destination fees, according to unchanged from 2013, with standard equipment including a 3.6L V-6 engine, CUE, intelligent brake assist, and Magnetic Ride Control.