Creative levels
Got some bugs though. In the level where you have to use one little bridge to get the car across a bunch of water hazards, if you set the bridge safely across one the game will say you dropped cargo into the water. You can still beat the level, but only by hauling the car quickly through the air.
The very last level is obviously supposed to be a great big picture puzzle, but the game ends as soon as you have only one piece in the right place.