If you look at the ad in my avatar there were 4 types of replacement 909 3dr shell, they came in LHD no sunroof, LHD with sunroof, RHD no sunroof and RHD with sunroof.

They were all made in 1989 by Fords motorsport division hence the 909 part numbers, the original replacement shells from 1986 were not labelled as 909 just had a regular v86 part number and were quickly used up which is why the rebatch were made a few years later.

An owner can call there car whatever they like, whether any buyers agree with them is another matter