Сейчас ищу прокатную машину, так вот по поводу первичности-вторичности МВУ наиболее конкретно написано у Hertz:
Holders of drivers licences outside of the European Union are strongly advised to have an International Drivers Licence (IDP) and present it, together with their national driving licence, at time of rental. An International Drivers Licence on its own IS NOT acceptable.
или вот например у Europcar:
In addition to the normal driving licence, an international driving licence is also mandatory if the driving licence is written in a language different to the one of the renting country and/or in characters that can not be read in the renting country. Please note that the international driving licence is valid ONLY if accompanied by the normal driving licence.
Holders of drivers licences outside of the European Union are strongly advised to have an International Drivers Licence (IDP) and present it, together with their national driving licence, at time of rental. An International Drivers Licence on its own IS NOT acceptable.
или вот например у Europcar:
In addition to the normal driving licence, an international driving licence is also mandatory if the driving licence is written in a language different to the one of the renting country and/or in characters that can not be read in the renting country. Please note that the international driving licence is valid ONLY if accompanied by the normal driving licence.