Are these the new mid engine corvettes that everyone is talking about? That's probably the heater to dry out the wiring harness problems they are having!
Can't see enough detail, but if they are stripers, the heads could be underneath so the operator can look down though the frame (open floor) to monitor.
Ive seen a low slung VW based buggy used to put the reflectors on the yellow lines, driver uses cordless drill to buzz them down, box of reflectors sitting in passenger seat...
I remember a few years back they were taking all of those up and filling in the divets because so many had come loose and damaged vehicles. I still see news stories about that happening, but I've also seen a lot of new ones recently installed. Maybe they found a new way to do them?
Well, if you look at the boxes sitting in the passenger seats, it's 3M products. Which usually means tape or glue. I'm sticking with striping of some sort.
Bobcat Toolcat 5610G, Deere X744, Cub Cadet IH 982
Early testing of the new Tesla pick-up truck. Their attempt to disguise it as a Chevy was not enough as we can all spot the propane fired flux capacitor fuel cell mounted in the back. Early models used 3M products as fuel but proved to be quite costly.