Vacuum trucks and sweeper trucks

Abraham loves to draw vacuum trucks and sweeper trucks. He draws them again and again, and includes every detail he can think of (ignition, key, gear shift, etc.) . I got him to tell me what each thing was so I could label the pictures above. [to enlarge, click on picture]

In the bottom picture, Abe made a vacuum truck out of his bed. Note the purple vacuum hose reaching down. The items on the bed are, respectively, a button to turn the vacuum on, the ignition, the key, the vacuum tank, a water bottle, and (on the floor) the gear shift. This truck has a "steering bar" instead of a steering wheel, Abe told me. I assume that's the bed frame that he grabs onto to steer. Daddy Bear, Blue Bear, and Honey are passengers.