BMW 02 series (1502 - 2002).
Designer was Wilhelm Hofmeister, the inventor of the "kink" on the C-pillar of all following BMW models (Hofmeister kink).
Giovanni Michelotti had previously designed the larger BMW "New Class" and was a consultant on the design of the 02 series.
It looks as if a photo of the rear end of another Michelotti concept car was copied into a photo of a BMW 02 by photomontage. The rear end could be from the Michelotti sketch "Daf Siluro" from 1968.