They're calling it the luxury car of the future that will serve as a "personal headquarters."

It's the Cadillac XTS Platinum concept car, and General Motors Co. unveiled it Tuesday at the Detroit auto show.

Concept cars are displayed at shows to gauge consumer interest, and they often are the basis for future products.

The XTS, which can run on a rechargeable battery-powered electric motor or a 350-horsepower V-6 engine, has touch-screen entertainment, and navigation and information systems, GM says.

It has light-cream leather seats contrasted with darker elements in the interior.

The car also has magnetic ride control with sensors on all four wheels to read the road and adjust the suspension to movements of the car's body, GM said.

The XTS has two electric motors and a gas engine controlled by a computer that decides the most efficient combination.