I bought a rare 91 Z28 (at least in switzerland it is rare) from my uncle.
It has grey leather seats.

And it has a grey leather wrapped steering wheel the same a Beretta Z24 has! Was this an option?? Never saw an interior shot of any other camaro with that steering wheel!

I have options list that comes from a GM dealer..there is an option called Z24 : leather steering wheel

The steering wheel should be the standard ugly large airbag steering wheel found in every 90-92 F-Body. Some have leather on the rim, while others are entirely rubber. Nonetheless, unless there was some sort of special steering wheel for export Camaros, it shouldn't be anything out of the ordinary.