A couple of times in the last week, I've heard two Italian repeaters on 50MHz from the mobile. Most regularly I have heard one on 50.500 but I have also heard one on 50.800.
Of course, I wondered where they were. IK2ANE has a good repeater list but I can't see either frequency mentioned.
It's possible that the repeaters are not Italian and were just being used by Italian stations! It's also possible they weren't amateur stations - no call signs were heard!