Driving in Iceland is differed from driving in most other countries, at least in Europe and North America. There are still parts of the main Ring Road that most visitors drive, that do not have asphalt but are still gravel roads. This is also true for the smaller Ring Road like the Westfjords road trip.
There are many roads outside the main Ring Road in Iceland that are not expected to see asphalt anytime soon, as the road on the photo on the northern side of the Snæfellsnes peninsula. Also, many smaller country roads and roads leading to the magical Icelandic Highland. So everyone driving in Iceland should be aware of this fact and prepare. And shouldn't this just make things more exciting? It's different and adding the fabulous landscape; it is exotic.
There are information pages that visitors can find through Google regarding gravel road driving in Iceland, and this is crucial for visitors. But it is good to keep in mind that driving slower on the gravel roads is always better because they can be dangerous for people not used to them. And one thing is more important that anything else, to slow down substantially before entering a gravel road coming from the asphalt part.