There are some 'motorways' around Bergen and Oslo which have a 100 km/h limit, but almost all other roads across the country have a max of 60, 70 or 80.The article says the limit is 100 km/h.
Some stretches of dual carriageway around the country sometimes have 90 km/h, but in general the limits are stupidly low.
So yeah, a 525d is plenty sufficient
