They don't seem to link their sources (that's bad) but the general numbers seem to match The European Automobile Manufacturers’ Association (ACEA) report for H1 2026 [0]. They include EU + EFTA + UK.
I'm not entirely sure why you're getting downvoted. I wasn't able to find a source for the data but it is probably new vehicle registrations. Europe here seems to include Norway, Sweden, Finland, Iceland, Switzerland.
Sweden, Finland and Iceland would be part of any definition of Europe? They're all EU countries, and (irrelevant to that) are now all NATO members too.
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