Add me to the list of folks with a One Wheel XR in the trunk. I own a traditional electric skateboard that I've only ridden twice in the many months I've had the OW. The OW is /so/ much more pleasant to ride and more versatile than the traditional electric skateboard that I can't imagine going back.
Removing the cover for the lower part of the trunk makes for a perfect fit for the OW to keep it from rolling around which was a problem in my previous car.