The Tesla isn't priced as a luxury car in Norway. Electric vehicles are exempt from taxes and fees, which is mostly where the money goes when you buy a more traditional vehicle. They also don't pay anything when passing toll booths, IIRC. Where I grew up, people now pay ~$10 just to pass toll booths to and from work every day.
There are other benefits as well, like free parking, Tesla's free charging station--and most importantly for many--you get to drive in the lane reserved for buses and taxis instead of dealing with traffic to and from work.