2017 Audi A4 Premium. 2017 Audi A4 for sale near St. Peters in O'Fallon at Jim Trenary Chevrolet. Leather heated memory front bucket seats, backup camera, sunroof, dual zone front automatic A/C, rear HVAC with separate controls, 4D sedan, 2.0L TFSI I4 DOHC with Audi... via AutoRevolution