^^they was extras.
Vw changed as you say the glass from blue to green, less speakers, aerial moved from the rear window to the roof, foglights went from projectors with h11 lamps to reflectors with hb4 lamps, very early cars had open fog grills, the rear boot badge/handle changed to a 2 piece 3d badge (also the shape around this on the boot slightly changed), AXX engine changed to BWA, revised cam.
Other bits I'm not 100% sure if they was options or if they changed is the leather on later cars was black and not anthracite, the RNS was available on really late cars iirc. I think leather became standard on late cars like it did on the mk6