2018 Cadillac CTS Sedan Luxury RWD. 2018 Cadillac CTS Sedan for sale near St. Peters in O'Fallon at Jim Trenary Chevrolet. Leather heated and A/C front bucket memory seats, navigation, back up camera, sunroof, 4DR sedan, 2.0L turbo I4 DI DOHC VVT with automatic... via AutoRevolution