The scope of the draft was more or less restricted to in-vehicle communications because of the privacy concerns ("The focus of this work is to enable in-vehicle networks to exchange packets with VIN-based IPv6 addresses." -- although inter-vehicle communications is still a big deal under use cases), so I don't think use of DNS, etc., apply. If the draft isn't really restricted to in-vehicle communications I have a number of architectural arguments about why it's a bad idea. VINs are neither topological locators nor IP endpoint identifiers, and trying to map them onto either causes confusion. They're fine as higher layer tokens.
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