2019 Chevrolet Colorado 4WD ZR2 Crew Cab. One Owner Vehicle! 2019 Chevrolet Colorado ZR2 Bison Edition for sale near St. Peters in O'Fallon at Jim Trenary Chevrolet. ZR2 Bison includes: Chevrolet lettered Grille, American Expedition Vehicles (AEV) front & Rear Bumpers,... via AutoRevolution