Chronology
There was a minor facelift in March 1976 during, most noticeable on the grille of the 15, where the chrome edge surround was replaced with a body-coloured one, and the headlights were enlarged and brought forward to lie approximately flush with this. The 17 also lost its chrome surround, although on both cars the partially chrome front bumper now curved up at the edges to roughly half-way up the height of the grille.
The R15 and R17 remained in production until summer 1979 when they were both replaced by the Renault Fuego.
Read more about this topic: Renault 15/17