not necessarily. look at france fr6 (that basically is the reference for this...). they're aiming to have the same national homologation in italy too. they sold 100 lancia rally4 for the trophy. if...
https://rallyjournal.com/big-promise-from-juha-kankkunen-to-sebastien-ogier/ Kankkunen says that Ogier can drive any rally he wants.
If they're aimed at national competition, going through FIA paperwork could add unnecessary €€€s to the cost/price.
Imo it's easier to sell a car with an international homologation than one with a national homologation.
No Philip Allen on the QS ?
[ERC] Rally di Roma Capitale 2025