Alan;
I agree. I was over last year about this time and we either walked or took the bus in Edinbourgh, and then rented a car. It was difficult to drive in old parts of town, and in some residential areas because the roads are narrow and people park on both sides of the street leaving only a little more than one lane down the middle. Otherwise the main roads are great. I would suggest buying the gap insurance (covers your deductable) if you haven't driving on the "wrong side" of the road. I clipped a mirror before we got out of town.
BD