Prices SL in other countries

Evening people, I just tried to configure my SLhttp://www.motor-talk.de/forum/habs-dot-t5579067.html on the US MB page (http://www.mbusa.com) and I noticed that the net prices of the basic models are significantly lower than in D. For example, the SL500 (named SL550 there) is 96,200 € compared to 103,275 € in D. What’s this about? First guess, maybe the US models are worse equipped but exactly the opposite is The basic model has already been used as standard HK sound system, keyless, wind bulkhead and a lot more, things that are expensive extras in D. Then I became curious and have tested still UK (105.520€), Abu Dhabi (111.200€), and also China. I can’t have a mandarin but with Google Translate you can find out that the SL500 seems not to be offered at all, but only two variants of the SL400 (SL 400 Avantgarde + SL 400 Luxury) which are at proud 145.800 and 178.500€ respectively. But back to US prices. What could be the reason why our favourite car is so much cheaper there? Is MB there so extremely under price pressure? Does anyone know if it was already like this at R230/R129/R107 at that time? If so, this would have to be reflected in the used car prices, i.e. a used SL over there would have to be cheaper than a comparable car in D… whereby at these periods of time, of course, the fluctuating €-$ exchange rate comparisons difficult to compare. I don’t know.