False dates? I don't understand.
By the way, more than half of the cars in "your" list are
R1xx, especially when tightening to the
1969-80 model years (270
R117x // 208
X17), i.e. the European production range. And 3 Renault 12 you linked in your previous post are European cars, the 4th being a 1971 Turkish one...
At least 2 Renault fans sites say that Renault 12 were
R117x or
R133x, and so do all
technical books. Never thought there could be some mistakes in IMCDb? We (IMCDb contributors) are humans, and it's well known that
errare humanum est