So not as much of a discount as you might have thought.
CO2, NOx and others are just-as, if not more important and your air filter won't do jack diddly for those.
I absolutely, unequivocally, did not say that.
Seriously, sell your car and take the bus.
https://www.ucsusa.org/clean-vehicles/vehicles-air-pollution...
Are there brake pad emission standards? I don’t know.
https://www.tesla.com/no_NO/support/incentives?redirect=no
Edit: from an old reddit post, it seems like there's a VAT, weight, engine, CO2, N0x tax. In theory, in an 'even playing field', I'm guessing EVs should be paying VAT, weight, and engine taxes. Not completely sure which of these they pay (or if the list is even correct).