Gosh, I went out last night for a very nice, long relaxing meal with friends, so switched my 'phone off not to be disturbed. Coming back on-line this morning, I see that there has been some major progress with this puzzle overnight!!!
So, what to do now?! As Nicanary says, if I'd seen Wendax's 'Ligier' guess last night I would have locked the puzzle to him to find out more. However...
I guess I could be generous and award one point each (as half points don't exist) to Wendax for guessing Ligier, Oko94 for guessing Heuliez, and Nicanary for completing the puzzle with the O F name, or I could just move it to Solved with the full correct model name (Ligier/Heuliez-O F 4x4) and award no points at all. Perhaps Admin can help me decide the most fare and correct outcome here?
Meanwhile, here's a full photo of the car...