2024 Colorado Zr2 Bison Mpg. Fuel economy of the 2024 chevrolet colorado zr2 bison 4wd. The zr2 bison's extra weight takes a predictable toll on performance.
We doubt it on account of the bison’s extra weight and the increased air and. Accelerating, the bison is 0.3 second slower getting up to 60 mph than a standard zr2.