Any construction foreman needing to move some dirt in the 1950s would have loved to have these trucks at work for them.  

Flip the drive lever on the side of the Power Crane Truck (PCT on the door) and it moves forward or backwards.  Flip the gear select lever next to the drive lever and the battery-powered motor switches from the wheels to turning the clamshell bucket left or right.  On the crane cab one hand crank on the crane cab raises/lowers the boom, while the other hand crank raises/lowers the clamshell bucket.  So many amazing actions in one truck, but wait theres more.