So, being a crashtestpilot, there are a number of good arguments to have vehicles.
Possibilities:
a) Snails. They're slow, but with a custom paint job? Also the ability to crawl up vertical surfaces. And you don't have to feed them as often.
b) Bees. Giant fuzzy ones. Ability to get to high places. Also, they stow bigger bags on their hind legs. But man, they go through the fuel.
c) Dragonflies: Sort of like bees. A little different. Probably no exterior pannier storage.
d) Pogo sticks: You know you want them, but the spinach jump means wear & tear.
e) Unicycles: Speedy on the flat, not so good with jumps.
f) Mini-dirigible bicycle -- you can fly, but slowly.
g) Frog-beanie -- I assume it uses some kind of fuel, or advanced levitation skill.
That's enough for the moment: Add your ideas here!