All I added was the light, de-badge, non smokers.
I didnt see any point in the comfort back - wouldnt use any of the features. I would have loved key-less entry and start but not an option. Full leather seats annoy me - hot and cold and not as comfy as the half leather. I was going to get the full ipod setup but after reading users comments I didnt bother - I will replace the head unit.
Mods that will be carried out asap:
spray and break callipers 'red' and put the sline badge on them
sline tax disk holder
black front and rear audi badges
picked up a lead for the iPhone until I replace the headunit.
maybe some BBS rims - although the BE rims look the nuts in the flesh IMHO