Detroit 2010: Cadillac XTS Platinum concept

Let's just call this one the Cadillac XTS Platinum "Concept." For reals y'all, this is one of, if not the most production ready "concepts" we've ever seen. For its part, Cadillac stuck to the "It's just a concept" mantra. Though they might as well have all been nodding, elbowing and winking. If When the new XTS sees production it, will replace both the STS and the DTS.

For you tech geeks out there, this new Caddy is fairly intriguing. The all-wheel-drive powertrain is motivated by a plug-in two-mode hybrid consisting of the brand's 3.6-liter direct-injected V6 coupled to an electric motor. Cadillac was tight-lipped on the power rating, hemming and hawing before saying "around 350 horsepower."

That may not sound like buckets of oomph, but when compared to the Mercedes-Benz S400 Hybrid – the XTS's probable direct competitor – makes 295 hp. The XTS theoretically makes 295 pound-feet of torque, too. For those of you not geeked on the hybrid bandwagon, Cadillac's general manager Bryan Nesbitt posed an interesting hypothetical question, "Is the largest displacement engine the only symbol of luxury?"

As for the XTS itself, it looks like a big Cadillac., which if you stop and think about is is a good thing. Cadillacs should be big, and this sucker is large – within a couple of inches of the Mercedes-Benz S-Class, according to both Caddy and our highly unscientific eyeball-based measuring system. We also thought the XTS was significantly better looking in person than in the preview pictures that broke last night. Supposedly there are lots of design cues borrowed from Cadillac's legendary Sixteen Concept, but aside from the grille we're not seeing it.

The XTS has its own mojo going on, especially when it comes to the interior. Here's where the Platinum part comes in. Nesbitt explained that Cadillac intends the XTS Platinum to be a "personal headquarters." We're not going to buy into the CEO and wannabe CEO pandering, but lordy is the interior fabulous. Featuring intricate laser-perforated stitching on the leather and synthetic-suede bits with sharp looking burled wood covering everything else, we have to say that with the exception of the Bentley Mulsanne, the XTS Platinum Concept has the best interior at the show.