Im 1,90m and my brother is 1,94m, so sunroof is not an option we have it in the A4 and only got 1cm to the roof instead of 5. Not sure on bluetooth, seems practical, and Im not the "aftermarket" kind of guy But, Navi plus and the biggest bose package is a must though, hoping it to work to put my phones 1gb memory card with music to plug in and play

about winter wheels, yes probobly from audi, should get a nice price from them.