The story: Shortly after midnight on 20 August last year, a large goods truck driving down the N12 West highway near Alberton was struck from behind by a black BMW 540i, said to have been driven at high speed. It was not a serious accident: no one was hurt, the truck was undamaged and the car was scraped along the passenger side, with the mirror broken.
What we know: But what turned a minor fender-bender into a political mystery is what unfolded next, as described in written statement from a witness and metro police, and in interviews with amaBhungane.
A closer look: The BMW was driven by mayor Mzwandile Masina, breaking curfew in a City-owned car he had allegedly used without permission. He was removed from the scene before police investigations had finished and no witness statement was taken from him.