I think it would be cool that, if for the new wheelchairs in the most recent update, that when you press q it make you "pop a wheelie" just like how when on a skateboard and you press q you do a jump! Lots of people in wheelchairs "pop wheelies" not just for fun but it can be useful to get over little curbs or different heights of floors, but also even to get over things that are in their path of rolling. It would be a small detail that would add more realism and representation of the disabled community.