driving mirror
noun1
A rear-view mirror.
- The endless street was populated only by the little ghosts of steam that wavered up out of the gratings in the asphalt that gave access to the piped heat system of the city. The ugly bonnet of the car mowed them down one by one, but in the driving-mirror Bond could see them rising again behind him in a diminishing vista of mildly gesticulating white wraiths.1954, Ian Fleming, “No Sensayuma”, in Live and Let Die, London: Pan Books, published 1957, page 82: