I think this is a key difference between Denmark and USA. Here in USA drivers don't think they're being subsidized. A common argument against transit is that each ticket is subsidized.
There's a highway that just opened in Virginia where they increase the toll to the point where traffic flows at 45MPH. The highest toll on day 2 was $40(!!). This gives you an idea of the value of what is typically given away for free.
'...the current administration had decided to phase out tax breaks on electric cars, citing budget constraints and the desire to level the playing field. That decision was delayed in June amid a dramatic drop in sales of Electrically Chargeable Vehicles (ECVs)'.
ECV sales have relied very heavily on subsidy in most of the western world, it will be interesting to see demand when competing on a level playing field with ICE vehicles
https://electrek.co/2017/12/19/tesla-breaks-new-records-norw...
https://e24.no/makro-og-politikk/statsbudsjettet-2018/tesla-...
EU may enforce VAT on the cars, time will tell:
https://www.aftenposten.no/norge/politikk/i/nkkxd/Ap-vil-ha-...
We'll see how that goes. Fun fact: Norwegians don't like EU telling them what to do. (I'm a Norwegian, moved to Australia nearly 2 decades ago).
'Norway has been hugely successful in introducing electric cars and aims to sell only zero-emission new vehicles by 2025. But critics argue that their popularity is mostly down to an extremely generous set of subsidies that can cut the price of the most expensive Teslas by about NKr450,000.
When and how to withdraw those subsidies has sparked a huge political debate. Some Norwegian politicians point out that many of the early adopters of electric cars were rich households buying Teslas. Bus drivers in the richest parts of Oslo complain that bus lanes are clogged with electric cars, which are permitted to use them'.
The main problem I see with a high tax is that people might circumvent it (illegal imports etc).
An interesting effect of these high taxes is that you can very “cheaply” subsidize EVs now. It’s lost revenue so it’s still a cost - but it’s easier to swallow and administer.
Just tax them at 10% instead of 100% and a Tesla Model S is immediately competitive with all the boring ICE vehicles. Look at how Tesla is the most sold car in Norway.