Allow players to add decals and Guild logos/symbols to mounts, also allow modifications like bigger engines, different colour thrusters.
Change paint colours and allow friends to jump onto 2 or 4 seat vehicles with you.
Also the animations could be touched up a little, and allow slight rocking and a more realistic hovering animations while vehicle is stationary.
And have 2 different speed choices, cruising speed and full speed.
Allow players to land/park/shut off vehicle aswell.
thanks for you time/