LEGO to the rescue
Old blue sheet for the ground sweeping up to the backdrop.
Small Christmas lights with other Lego blocks and characters for the background. A flashlight taped to the camera and one on my head, to ensure light on moving subject.
A fishing-line to pull the truck.
Method: pull fishing-line with left hand while panning and shutter release with the right hand making sure my head was following the subject.
Unfortunately this did not quite make it to the MBP Assignments “Panned” www.mbpgalleries.com/thumbnails.php?album=879