Finally saw one of these things today. I dunno. I'd imagine my Corolla could enact some viscous carnage on one in a wreck, let alone a Super Duty! Way too small and unsafe for my liking. I know the NHTSA gave it four stars, but in the real world, with real bodies? I know NHTSA and Insurance Institute crash testing is questionable in terms of real world applicability, and I wouldn't want to take my chances with a gas powered rollerskate.