I could have used a rear camera today.
Coming up Greenmount Hill had the typical arrogant knobhead (it's a technical term) that did everything he could to stop me from changing lanes, then further up the hill sat 30 cm from my rear bumper, hand on horn, weaving left to right, because I was doing the speed limit and he wanted to speed and there was a truck in the left lane.
Of course, once he got back in front all looks normal on the camera because all the action was behind me.
He had Victorian plates on his car and when he got past, took off heading towards Victoria (east
) like a bat out of hell.