I'd hardly consider leather as 'extra' equipment, more of
a personal preference. Looking at MK5s on autotrader i still see tartan cloth on most of the late 2009 models, so not sure what you say is true.
I was simply trying to help inform you why they have slightly more equipment.
I have every mk5 VW catalogue from 2004 on, including price lists, and was also sent a copy of every model year change that normally happens twice a year.
I also have run out model catalogues for the mk1, mk2 and mk3 showing the extra parts fitted to those over previous ones.
........