Navigation, Sunroof, Heated Seats, Leather Seating, Memory Seats, AWD, and CUE. ATS 3.6L Performance, AWD, and Black Raven. Flex Fuel! If you've been longing to get your hands on just the right 2015 Cadillac ATS, then stop your search right here. This great car is the one-owner specimen that is certain to impress. Having had only one previous owner means that this terrific ATS is sure to be a favorite among our more educated buyers.