2025 Colorado Zr2 Review 2025. We test out the most extreme zr2 bison and come away wildly impressed at its. 2025 chevy colorado zr2 bison goes bigger.

Wt (work truck), lt, trail boss, z71, zr2 and zr2 bison. Accelerating, the bison is 0.3 second slower getting up to 60 mph than a standard zr2.