It looks stout, but I don't think these statements here in bold are true... ""We found out we far exceed anyting that can happen from a direct hit from an F-5 tornado," Guyse said. "We threw everything at it possible and there is virtually no damage."
What's the maximum speed a vehicle could reach inside an F5 tornado? You would have to first estimate that, then ram the car into it at that speed. Then estimate the speed of say a big rig diesel truck and try that. If it survived these impacts the above statements would be closer to being true, and I might get in it with an F5 coming. It would probably ride out lesser tornadoes no problem.