>its license plates' terminal -75 - Until a recent overhaul of
>the system, French license plate numbers ended in a two-digit code
>corresponding to the official départment where the car's
>registered owner resided. (These codes were, and I believe still are,
>also used for other functions to do with governmental tabulation, such
>as the "where born" part of the ID numbering system mentioned in the
>previous episode.)

For some reason, and I've forgotten them all now, we had to memorise all of the départment codes as part of secondary school French.

L.