America is a big country so there has to be some bad roads. But if we compare with Norway by percentage, or if you look at bad roads that are major or important roads, it is no contest.

Even the main three roads between the capitol (Oslo) and the second largest city (Bergen). Has parts that will give Lombard street a run for it's money.

I would love to see a Tesla with the yoke try to do Trollstigen (https://en.wikipedia.org/wiki/Trollstigen), that I'm sure would be hilarious.

Yes, I agree by percentage. But there are certainly many mountainous areas in the US with winding and poorly maintained roads.