A 2025 non-hybrid gets 47+? I don’t think so. That’s pretty close to the EPA rating for the hybrid model.

15 year old, so c. 2010.

I can easily belive it, though the closest Civic mpg report I found was for a 2012-14 model:

  What is the fuel economy, Honda Civic IX Hatchback 2.2 i-DTEC (150 Hp)?
        4.4 l/100 km
        53.46 US mpg
        64.2 UK mpg
        22.73 km/l

I had use of a Renault Megane for a bit, it was getting something a bit better than that: https://www.auto-data.net/en/renault-megane-iii-phase-ii-201...

American cars just aren't at all efficient by anyone else's standards.