Just a look at the map gives you some idea of what the road to Haría is like.
The spectacular views of the ocean in the distance are combined with a drop of several hundred metres on one side of a road that is not always wide enough for two vehicles to pass without slowing.
Here is a short film I made of a journey along the road last year. It does not contain any sound:
That said, the road is sometimes used for racing:

One reason might be that each country looks to its own citizens and their inventions. The telephone is a similar example. Whilst people in the UK and USA will tell you that it was Alexander Graham Bell who invented the telephone, most people in Germany – especially in the Taunus region – say that it was Philipp Reis.