Additional insurance abroad – if the opponent does not pay

Hello, it’s holiday time, therefore my questions: I have recently read about an additional insurance for abroad, which you can probably conclude with your liability insurer. This insurance takes care of the damage to your own car even in case of unincurred accidents and then takes care of the recovery of the claims neim accident opponent or its insurance. Is intended for the case that the processing of the refund takes place over years or the accident object is not insured at all. Cost point probably from about 30 EUR /year. Sounds quite interesting for me and I think about taking out this insurance, because we have planned 2 long holiday trips by car this year. On the pages of various insurers, however, I did not find anything to do with it. Does anyone know perhaps more about it? Is this in your opinion useful? Gruss Martin PS: I can still remember the accident of a friend, who is in Italy g was driven over the heap by a car with his motorcycle (motorcycle broken, he saw bruises etc.) and never saw money. At that time he was allowed to lead the whole correspondence in Italian – at some point in the money went out for it – he was then a student.