New Cadillac XTS Platinum Concept Car 2010An animated 3D exploration of Cadillac's latest concept show carDetroit Editor Todd Lassa has the lowdown on Cadillac's luxurious XTS Platinum Concept at the 2010 Detroit Auto Show.Cadillac unveiled the Cadillac XTS Platinum Concept at the 2010 North American International Auto Show, suggesting a new paradigm for the luxury sedan of the future. The