The Cadillac XTS isn’t known as the most exciting vehicle in the brand’s lineup. In fact, it’s a rather dull, but luxurious, offering. Actively avoiding the production of dull cars seems to have become a bit of an obsession at Cadillac, though, so it's gone ahead and dropped the 410-horsepower, biturbocharged V-6 from the all-new CTS under the graceful hood of the XTS. The result is a large Caddy that we'd be happy to drive.