Like the DTS Platinum, the Cadillac STS Platinum is understated on the outside. Chrome 18-inch wheels, Ebony paint, chrome door handle trim, and extra brightwork on the grille are the primary identifiers, in addition to the special Platinum badge on the back. Inside, the STS Platinum receives the leather-upholstered dash, door panel and center console treatment of its performance oriented V-Series sibling. Tuscany leather, added chrome accents, olive ash burl wood trim, and premium floor mats deliver an upscale cabin environment. Cadillac will offer the STS Platinum with a choice between V6 and V8 engines when it goes on sale in the first quarter of 2007.