Here is a shot that I would say is a normal viewing aspect of the car. Now OH5 wheels mean they are open hole 5 spokes but from this picture, it's very hard to see the open hole in the wheels.
Now here is a high resolution, close up of the car. You can see the wheels but really can't tell that they are OH5's
Now here is a shot that will for sure throw you for a loop. The hard to find OH5 variation on top, and the normal common wheels, the MC5's, on the bottom. Now you can clearly see how hard this variation is going to be to spot. Again, for anyone that collects this casting, keep an eye out on eBay. Someone may not realize they have this variation and list it as a normal MC5 variation.
I hope this article helps clear up some confusion on this variation, as I am sure it will raise some questions. Also I am working on a Hot Wheels wheel guide to post on the site. At this time I'd like to give a big shout out to Robert Graves over on South Texas Diecast. He's letting me use pictures from his site on here. If you haven't checked out his site, it's for sure worth checking out.