It’s over 15 years since I was there last, very tense back then a lot of piracy going on, I was with a friend who’s an Albanian emigrant on Corfu and has family there and he took me round some spectacular archaeology in the south-west but on dreadful roads, I had gone to see Ithaca which was a disappointment.
My friend tells me the coastal strip is fine now and the “motorways” are OK, although that’s in a Ionian context, however he claims there are “still thieves and murders in the mountains” but I don’t necessarily believe him.
Try to avoid driving when the Italians are in Greece, the Brits and Germans try to follow the rules while the Greeks and Italians have a slightly different approach, causes some confusion. Greece also has on the spot fines for stuff like not wearing seatbelts, 400 euro in that case