Photograph allegedly from Barcelona in 1987

This image has been bothering me for years. It has been in Wikimedia Commons since 2014 named "Barcelona Ramblas.jpg" and described as taken in 1987, but I'm sure it's not the Rambles and I can't identify it as anywhere else in Barcelona, and although I would be happy to be proven wrong, I think I know my city fairly well.

Furthermore, it looks older than 1987 to me.

The carriage looks like those that existed in Barcelona until a few decades ago, and I assume they also existed in most touristic large cities in Spain. The cars look a bit older for 1987 but not unfamiliar, so I think it can be an Spanish city in the 1970s or maybe even earlier. The car plate could give a clue if not for the rein that hides the province code, although it makes less likely the provinces with a two letter identifier (like the Balearic islands), in addition to confirm that the photograph is likely taken in Spain because the car plate looks like the Spanish car plates of that time (province code plus six digits, black on white).

I tried looking in Google Maps for similar avenues, but I couldn't find a place that match the photograph.

Then the question is where this photograph was taken, in order to properly tag and classify it in Wikimedia Commons.

For convenience, the full size link to the image is https://upload.wikimedia.org/wikipedia/commons/d/d2/Barcelona_Ramblas.jpg