The previous Cadillac CTS was close to being a game changer, but its lousy interior blew the deal. For 2008, Cadillac not only stepped up its game, but changed it completely. The CTS begs no apologies from BMW, Mercedes-Benz, Audi, Lexus or Infiniti. For example, who could have thought that Cadillac would teach the Europeans a lesson on interior styling, fit, finish and execution? The exterior styling is bold, elegant, distinctive and classically American. It’s also a blast to drive, and with a 550-hp CTS-V on the horizon, even the M, AMG, RS and -F versions of the big players aren’t safe.