Just as an FYI, I was in a Ford PD building yesterday and was asking about the Ka. They manufacture that car at Valencia, Spain and at a plant in Poland. The person I was talking to, did not know where the engines for that program are produced....
I had guessed that you had more than a typical interest in the topic...
Fyi - I had heard (unconfirmed) that volkswagen had a similar high efficiency car that was not available in the USA for the same reason - slightly high CO2 emission in a very high MPG engine.