2016 Audi A3 1.8T Premium Plus. 2016 Audi A3 for sale near St. Peters in O'Fallon at Jim Trenary Chevrolet. Leather heated front bucket seats, backup camera, Audi advanced key with keyless start/stop and entry, 2dr convertible, 1.8 TFSI 4 cylinder 170 HP, S tronic 6-spd... via AutoRevolution