It's mostly taxes, EV cars have no extra tax which makes them cheaper than petrol cars which often have 100% tax added to their price, which is not really the case in most other countries.
Not ridiculous at all when thinking of the environment or having cars that are friendly towards cyclists and pedestrians.
This taxation is why European cars gets so much better mileage than US cars.
At that point they'll definitely reinstate VAT for electric cars, and possibly levy a tax on public chargers based on how much electricity you use.