Just idle thinking.
While rummaging through my junk, I came upon my old wooden tennis racket from my teen years. The leather wrapping on the handle was perforated with numerous holes. I thought back to the GTO that has it's perforations at the 12o'clock and 6 o'clock locations. I recall being told that the tennis racket had perforations to allow perspiration to get soaked into the leather rather than sitting on the surface giving a slippery surface. I've wondered why the GTO's steering wheel doesn't have the perforations in the locations where one normally grips the wheel rather than where they are? Not that I've gotten into any wet palms driving situations.... yet!
