After one and a half years I finally solved a puzzle regarding a JDM Mitsubishi Galant Eterna on French license plates in the Spanish Pyrenees! Today I found a couple more pieces of this puzzle:
Brochures Mitsubishi Galant Eterna
Not the same Galant Eterna but a white 2000GSR GT Turbo model also on French plates in the pit lane of, most probably, the Le Mans circuit in France including a Japanese celebrity called Ken Takakura (高倉健) born as Goichi Oda.

Then the same guy with a dog stand in front of a big ship with the same car with Japanese license plates:
Brochures Mitsubishi Galant Eterna
Maybe this was taken prior to shipping the car to Europe?

And to make it more intriguing the same car with Japanese license plates with a small photo the pitlane of Le Mans:
Brochures Mitsubishi Galant Eterna

And last but not least:
Brochures Mitsubishi Galant Eterna
The same, but larger, photo of the pitlane of Le Mans with the same Galant Eterna on French plates again next to a big sign pointing towards Le Mans.

So conclusion: the plot thickens as we now identified a marketing scheme by the triple diamond company (Mitsubishi) using photos of a Galant Eterna driving in Europe to market it (Toyota did the same with the Carina A6 series), using Le Mans to show how potent the car is and using a Japanese celebrity called Ken Takakura known for acting Yakuza roles (he played in Black Rain!) to sell it. Now that I found out everything it all makes sense. ;)

BTW: I must say the Galant Eterna looks awesome with these factory deep dished steel rims!

Brochure photos found at Minkara