Graywinter
Mongoose
Wheels/X":This is a special movement type (see page 15). While using this special movement mode, a wheeled model moves at much greater speed than normal...
If you look at the vehicles in the book, most of them are equal to two standard actions... some are even slower than if you moved with two standard actions.
Now, I understand that you are allowed to fire or charge in the course of this action, but what about vehicles that are unarmed? What good does it do them to wheel?