Ray, are you stuck on the X5 wheels for a reason or just because there are not any other options? Just opening up the discussion because I found a few steel options that are easy to get over here. I am considering putting the KM2s on a set of steelies and then cleaning up my 17" OEMs for some new KO2s.
I have my OEM 18's stacked in the garage and considering selling them. They still have a good amount of rubber left on the Nitto TG ATs but honestly, I do not think I will back to the 18's again. Although I have considered putting them on to run the rubber out and then selling the wheels and save life on my KM2s til the Tesla gets here. hmmmmmm!!!
Another way to tell is the center console, or so I was told. If it has the two buttons right of the eco and hill decent control, one will show a mountain which is low range and another shows the road which is high.
Like this photo here. I am also in the same boat, this one is an HSE Lux here in NY sold private party with 30k something miles on it. I'm thinking about getting out of my X5 and getting back into the overland game at some point.