Hmm, my 2 pennies.

If you have Bi-Xenon headlights (which you do with the premium package) then you already have Xenon hi/low beams. The secondary hi-beams (the two lights closest to the grill) are there only to flash and act as DRL (day-time running lights).

Oil is changed every 15,000 miles.

Yes, you can have premium and sport and cold weather packages all in one vehicle.

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