Driver Duty involves ferrying around other players where they want to go. To go on duty, you will need a driver-duty capable vehicle like the Maverick, Cabbie, Taxi, Limo (Stretch) or the Coach. See the image gallery below. If you want to go on duty with a different vehicle you will need to visit a mechanic checkpoint (such as at a Xoomer gas station) where you can upgrade the vehicle to a driver duty capable one (see right). You can also buy an upgrade from any Mechanic.