Once the self-proclaimed "Standard of the World", Cadillac struggled over recent years to reclaim its notorious tagline, but there is a light at the end of the tunnel for the 110-year-old luxury marque. The long-awaited 2013 Cadillac XTS sedan possesses the right amount of modern technology, interior refinement and contemporary styling to compete head-on with the luxury segment's imported stalwarts. Cadillac cleverly designed the 2013 XTS with the clear intention of bridging the gap between mid-size and full-size luxury sedans. The result is a rather broad competitive set, though based on price point we feel the mid-size Audi A6, Lexus GS, Infiniti M and BMW 5 Series fit the role as the XTS's principal challengers. While it might not be the new sedan standard of the world, the 2013 XTS decidedly fits the critical role as Cadillac's newest flagship.