I wonder if the custom built for the "Tucson Beast" could give you some info on a more "rugged" looking tire pack ?
Source :
www.autoevolution.com
I do personally use some knobby winter tires that are smaller in rim diam then the OEM and it works perfect on my PHEV Tucson.
They are not the cool looking A/T muddy offroaders, but might be helpful for your research.
Source :

This Is How Hyundai Awoke the "Beast" in Mark Wahlberg's Tucson From "Uncharted"
The car industry has figured out that movies are an excellent means of promotion, while the movie industry thrived on this symbiosis. It’s a win-win that got us some of the most interesting car concepts. One of them is, no doubt, the Tucson “Beast” that Hyundai promoted as Mark Wahlberg’s ride...

I do personally use some knobby winter tires that are smaller in rim diam then the OEM and it works perfect on my PHEV Tucson.
They are not the cool looking A/T muddy offroaders, but might be helpful for your research.