Are you buying or leasing? I would get a X6 50i with perf package and not worry about prem sound etc. or rear climate. You can tint your windows for cheaper.
If you are buying than you will take a hit with more options on 35i at resale time. At resale base price counts more than base+options price.
There is
only $3650 difference in MSRP below. The dealer has just a little more room on 50i for disc.
