Are you asking if there is/was a build quality difference between the 2 markets? I don't believe so. The only differences between the markets were engines/safety equipment/interior appointments.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member