$265 / week is a good price but will not include liability insurance which is not covered by your credit card. Do not rent a car without getting liability insurance - as mentioned the driving can be hazardous, especially when you drive the secondary routes. A1 and A2 are pretty good but the roads into the interior can be very challenging - watch for potholes and puddles with sticks in them. You will also encounter animals on the interior roads and lots of blind corners through the mountains. Do not be afraid to use your horn - it is a form of communication - we avoided hitting a dog around a blind corner because i was honking as I rounded it, in time to see the dog lazily move off the road - had I not been honking we would have hit. Don't be afraid to ask the locals for directions - outside the urban areas there are relatively few roads so the locals know them quite well. A good tip for driving on the left side - keep the passenger side to the curb. I hope this helps