What is it?

Cadillac is applying the same design theory and practice as seen in the recently revealed CTS Coupe to its full-size luxury saloon model. The XTS Platinum Concept is much less of a show queen and much more a fully formed version of the Mercedes-Benz S-Class rival that will go on sale in 2012. The XTS uses Caddy's 'Art and Science' design style, which increases cabin space by shortening the bonnet's length and stretching the windscreen further forward. There will be petrol V6 and V8 engines with the option of four-wheel drive, as well as a hybrid version.

Why's it here?

Detroit is Cadillac's home town, so a Detroit show without a glitzy Caddy isn't going to happen. However, the XTS Platinum Concept is more than a bit of show glamour, it clearly points the direction Cadillac is taking both in style and engineering. Caddy is keen to attract younger buyers and it knows sharper looks, a keen drive and environmental responsibility is the way to do this. The XTS concept embodies all of these values in a full-size luxury car and that's why it's here.

Show stopper or floor filler?

Cadillacs used to have a very restricted appeal beyond the shores of the USA, but the XTS Platinum Concept counts on a global stage. It will come to Europe and will also help Caddy establish itself more solidly in the emerging Chinese market, where European luxury cars have been selling very well. The XTS is vital to Caddy's future, but it also fulfils the role of thrusting the American company into the limelight at the Detroit show thanks to the XTS's fresh looks and, judging by the show car, greatly improved interior appeal and quality.

Full 2010 Detroit Auto Show report.