2021 Chevrolet Colorado 2WD Work Truck Ext Cab. 2021 Chevrolet Colorado Work Truck for sale near St. Peters in O'Fallon at Jim Trenary Chevrolet. Leather heated front bucket seats, backup camera, bedliner, 4 DR ext. cab, 2.5L I4 DI DOHC VVT, RWD, 17" alloy wheels, rear... via AutoRevolution