Must be the Dutch market premium on some of these items. The current German A6 allroad quattro brochure lists leather interior at EUR 2,255 (the expensive Valcona) or EUR 1,930 (the cheaper Milano), 18 inch wheels from EUR 900 to EUR 2,100 (depending on the design), entertainment systems from EUR 690 (the basic) to EUR 950 (the BOSE) or EUR 6,000 (the ultra high-end B&O). You are right about the xenon and the parking sensors (but only if you want a camera too, the basic parking assistant is EUR 780).
It's not that I want to dismiss the fact that German carmakers charge quite a bit for some options, but Tesla does the same. EUR 1,500 for heated windshield, rear seats and wiper fluid nozzles (which are mandatory here anyway), EUR 300 for a parcel shelf (which is standard on any other car), EUR 3,900 for a tech package with hardly any special tech in it.
Anyway, I didn't want to argue about the price of the options per se, just the immense and sudden price increase. Of course, if sales of these options don't drop because of the increases, good for TSLA, and I will applaud them for that. But sad for us potential future customers (I say future because the way this is developing, the Model S for me is slipping ever further out of reach. Still, can hope for Gen III - I do actually).
You're right about those premium Dutch prices: when I bought the A6 Allroad they included a 46% car tax (which has since then gradually been reduced).
I think the option prices for Tesla after the price increases are more in line with those at Audi/BMW/Mercedes. Unfortunately for that to happen they increased them a lot, and I'm afraid that might hurt Tesla. Some options that people chose have now become too expensive and are less likely to be chosen (like air suspension).