Yes please. You could make some hella chy there. You'll be like AAA in the US, fixing tires, filling gas, swapping batteries, and doing quick little repairs.
It'll be great for players to get into and.. COMPETE OVER!
Like Grey said, you already do get dirty. But I am very much a fan of the other ideas! Maybe even being able to fix a flat, instead of needing a tow to a garage too.
