Interesting, my X3 has all options mentioned by Richard, plus one or two others, no keyless entry though, but I also don't have the fourth button
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My Ride:
Mineral Silver F25 X3 3.5i AT, Oyster/Black/Wave wood trim interior, 307 style wheels, Prof Navi., Moon/Sun Roof, Adaptive Xenon Headlights, Auto tailgate, X-Line, Perf. Control, Apps, BMW Live, Top View, Prof. HiFi, Sports Seats, Elec. Tow Hitch, High Beam assist