White knuckled it a lot of times, but I rented a car repeatedly whilst living in London and drove myself all over the British Isles. From the White Cliffs of Dover out to Swansea in Wales, I literally drove from one side to the other. Madness, I tell you.
I figure I drove in downtown London repeatedly. My rental agency was in downtown London. I lived in downtown London. If I can drive there, I think I can drive anywhere on earth now.