Well, it isn't Matra related, but I don't know who else to ask.
Is there anyone of you who recognize this car and can tell what make and model it is?
From the Gearshifter in one photo I think "that has got to be Citroen". But the rest?
Could it possibly be that someone has taken a 2CV and done some slight modifications to it?
Notice the drivers seat. Looks like a lawn chair my Mom and Dad used to have