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Mercedes-Benz adopts Tesla's NACS charging standard
(techcrunch.com)
This is a most excellent place for technology news and articles.
CCS2 could certainly be redesigned to support 3 phase power in a smaller form factor if they upsized 2 of the power connectors on the mennekes plug to allow them to carry the dc current (similar to how nacs works). But it works well enough for Europe