The aircraft in the picture doesn't quite look like a Pawnee
to me. Is the picture flattened out a bit perhaps or is it
really some other model ?

Yes, the picture is stretched left to right. It is a Pawnee however. Maybe a
local glider club needed a tow plane? Naw, I don't think that is the case. I
wonder just how many other types of airplanes are stolen in Mexico a year?
Mac Pawnee pilot.