Dratsab: You saw the flash? Was this a long time ago or can you see in the infra-red spectrum?
There was definitely a flash. This was just as it was getting dark. I know it wasn't just a light or shiny thing, as at this point my eyes were fixated specifically on the van as I cursed it, haha. The people behind me over-taking the same vehicles I were, also got flashed as I went past the van.
Bang! bang! bang! bang! In very quick succession, all four cars behind me. Less than a second apart, coming from a black thing mounted to the tow bar/van's bumper. I don't see the IR spectrum no, haha!
Don't be makin' me second guess myself!
EDIT: This was on Saturday the 24th of January 2015 at about 7-7:30'ish from what I remember.