2020 Chevy Colorado ZR2 Redesign, Changes, Refresh, Price Karen R. Russell September 9, 2018 Chevy No Comments 2020 Chevy Colorado ZR2 Redesign, Changes, Refresh, Price. The recent introduction of the ZR2 Bison model is just an announcement of bigger changes on the 2020 Chevy Colorado ZR2. The … [Continue Reading...]