I will kick this section off with a few mods I've done to my Q3First one was to junk the cigarette lighter (we don't smoke) and replace it with an official Audi torch, a bit expensive but it works really well....http://www.ebay.co.uk/itm/Audi-LED-Torch-Light-Cigarette-Socket-12V-/220855518199?pt=UK_SportsLeisure_Camping_LightsLanternsTorches&hash=item336c03c3f7If you have the LED light pack Audi in their wisdom decided not to put LED's in boot or glove box, a cheap set from the bay cured that and I now have nice white lights....http://www.ebay.co.uk/itm/250885632224?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648Finally the front fog lights had a really yellow look with the standard bulbs and I didn't like the look with my xenons so I changed them for these....http://www.ebay.co.uk/itm/NEW-OSRAM-H11-COOL-BLUE-INTENSE-FOGLIGHT-BULBS-4200K-BLUE-LIGHT-/170783609730?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27c37f1382They look much nicer. Now you can go the LED route here but LED's can throw up errors if you don't get the right type and they don't light up the road as well as a proper bulbs, also the manual with my car said the fogs were H7 they are not they are H11 so be aware.I am now looking at the pedals and contemplating changing them for these...http://www.ebay.co.uk/itm/250738804398?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648But that is something for the future.