You mean in WA you don't have this kind of road? Maybe you don't have mountains?

Yes to both but i do remember our trip to Europe lots like this.

From a European point of view this looks rather harmless, nice and easy gradient, wide enough road to manage the curves comfortably;-) You needn't go at 50 kmh, you can always slow down-lol

You are so right in 82' remember lots of this wile we traveled the roads, there are a lot narrower here as well. this is a typical Europe road but not much comes even close in WA.