>Well - http://en.wikipedia.org/wiki/European_vehicle_registration_plates#Common_letter_and_digit_systems_between_countries
>
>If you *know* the country that the car is registered in then I suppose it would be possible to build up a Regex library with one or more entries for each country.
>
>Don't see a country in Europe listed that has more than 8 letters/digits. Don't recall seeing anything longer in non-European countries...

Thank you, this is interesting.