User blog comment:Cloud MCLight/What is the hardest map you've driven on?/@comment-108.19.38.150-20150422194559

I would say first Iceland, and then Tokyo.

Iceland has that cave which took me forever to find, and is a nightmare to see in while in a car.

For Tokyo, the shortest route in it includes a very sharp turn, which is fine for upper-class cars, but is otherwise extremely tough to make properly, and has often been a game-changer for me. -Warspiteww2