Saw a beautifully original 1981 or 1982 Mini City at a show yesterday, owned by a very nice lady. It had what I thought were the earlier rear lights: no reversing lights in them (although a separate one had been added below the bumper, and, on the other side, a fog light, which I think was mandatory after 1980).
My 1979 Mini 1000 has the reversing lights built into the rear light pods.
Was that a special feature of the City (which was the "economy" trim) to go back to the older rear lights? This car was super-original. In the family since new (she had a huge book of receipts) and, remarkably, in more or less continuous use.