I do not remember if it was discussed previously, but the current numbering of Renault Trafic seems a little messy, lots of errors.
They are splitted in 5 or 6 generations, but there were actually only 2 generations, each with several facelifts.
The first one, launched in 1981. It seems to have been restyled in 1990 and 1995, according to wikipedia.
The second one (current) launched in 2001 and restyled in 2006.
But that only make 5, I do not know how we reached 6...