There's at least some difference in design and requirements due to different assumptions about how high one needs to go on external rig, equipment in use, and f

There's at least some difference in design and requirements due to different assumptions about how high one needs to go on external rig, equipment in use, and fire codes. None of it insurmountable but essentially means european vendors would need to make US-custom trucks which wouldn't make for cheap option at least for starters