Nice write-up... lots of options... and possibilities make mistakes

I just checked my Turbo specification. I only have one option for the stitching with a code SZ and the explanatory text says "All stitching in Guards Red".

These are my interior options (if anyone is interested). Freely translated from German in close-to Bablefish quality:
SZ All Stitching in Guards Red
CDZ Leather in front of the shift-boot
DAD Aluminum shifter and handbrake leaver
XMZ Center console leather
XPA Thicker sports steering wheel
XTV Door panels leather
CFX Floor carpets with Guards Red borders
XNS Steering column in leather
XSB Sport seats with rear "panel" in leather
XSX Guards Red seatbelts