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.

Check out what this simple Automatic Dump Truck (ADT on the door) can do.  Built from the exact same toy parts this similar truck also moves forward/reverse based on drive lever position.  When the gear select lever is flipped the dump bed raises to dump its load then lowers back down to go get another load.  Not to be outdown by the crane actions on its sibling, this dump truck holds a secret, spin the hand crank right behind the cab and the entire dump bed will rotate 360 degrees.  What makes this over-the-top is the automatic dumping action always works ... side-dump anyone?