Cool, Ris! That's a fantastic chair! My supplier deals exclusively with Braun, they are that confident with them.
NurseNancy (Judy) has the swing hook in her van, you might ask her about what she thinks of it.
If you have a pickup, a BBQ cover with a drawstring added works great and won't force you to stick with the same car forever. I used one on my scooter through MI winters, so I speak from experience.
How cool that you can get it through hub's employer, that makes it a hundred times easier.
Have fun buzzing in the Q600 and only run over the bratty kids.