Hi. The Utah Student Robotics Team at the University of Utah is using your asset pack to simulate rocks in a virtual environment to train drivers and test autonomous driving for the 2025 Lunabotics competition. So, not self-driving cars, but rovers. That autonomy code does not exist yet, but the driving experience with these rocks is quite fun.
https://github.com/utahrobotics/lunadev-2025/tree/main/godot/lunasim
We have credited this page in the top-most README, please review it when you have the time.