Search a page or two down, I recently posted my thoughts on the options for our recently acquired X5...
- The Ipod adaptor is a must have for Ipod users.
- For us, all we wanted was the heated seats - we didn't want the rest of the cold weather package. In fact I hate it when the headlamp washers squirt all over the hood of a car (when all you wanted to do was clean the windshield).
- Sport package is great. However if you are going to be driving in mountain snow - I'd avoid the 20's (unless you get a set of winter wheels).