IIRC the Colorado ZR2 Bison had none of the upgrades applied stock to the base Colorado ZR2.I don't want the stupid junk bolted on but wouldn't it be likely the grille and maybe a few other changes would apply to all ZR2's ?
Looks to me like the same grille , just more parts painted. maybe not.
I have the 2023 order pages off the GM website, other than a couple color changes nothing changed. but, it doesn't show a bison package either so who knows. styling changes wouldn't show on the order blank though of course.