Non-Z71 ("plain") 4x4 here.
I wanted 4x4, would have taken Z71 but not an absolute requirement, and I really did not want waht I consider to be high school-style decals (I am still scarred by the enormous Trans Am bird, I think - those who grew up in the late 70s know what I mean) and I wanted a blue one, and at that time all my dealer could locate in the reigon was a "plain" 4x4 without Onstar (good, I did not want it) but SR (okay, turns out I really like it) and "Sport" leather (good, did not want cloth, or bench, and the cloth insert is good on hot days when full leather would have become scorching to bare legs). I could have done without the "4X4" decal.
Of course, it now has the 17" Z71 rims, but with bigger than stock rubber. Also added the skid "shields" (too thin and maleable to properly be called "plates"). I will get the nice rubber mats one day too, probably before next winter.