From what we can see through all the dust it looks like a pretty good old truck.

Those lights are the usual ones that were mounted on top of the fenders behind the headlights. He probably mounted them on the roof for ease of wiring and visibility to traffic behind him.

1953 Chevrolet 3600
Fried Green T'mater (Vern)
In the Stovebolt Gallery
Caution: Political Statement
Man who runs in front of car gets tired, man who runs behind car gets exhausted.