What we come back to is the very high sale taxes on new cars in Norway (our "rule of thumb" is that cars are close to twice as expensive in Norway as in some other countries), but that most(/all?) of those taxes are waived for electric. So the alternative to getting, e.g., a Tesla is paying almost twice as much for a "similar" BMW. Same story for lower-end cars.
Also, on the commuter high-ways leading in to Oslo, there's one lane that's reserved for bus+taxi+electric (similar to the 2+ or 3+ person-per-car lanes in California). There's a joke that there's a standing queue of Teslas in that lane now (though I don't drive there so I haven't seen how much of an exaggeration that is).
Also, electric don't pay on the toll roads, which saves you 3-4$ each time if you're living outside towns and commuting in.