Seeking to end the sale of petrol and diesel cars, oil-producing Norway has until now exempt battery electric vehicles from taxes imposed on rivals using internal combustion engines.But while tax exemptions help cut emissions, they cost the state 39.4 billion crowns ($4.0 billion) in lost revenue in 2022, the finance ministry said, and the centre-left coalition government is seeking to curb benefits for high-end vehicles.Those who bought an electric Porsche Turbo S last year would have paid at least 1.7 million Norwegian crowns, but if it had been taxed like its petrol-fuelled equivalent, the price tag would have been above 2.1 million."We are concerned that the sales will drop because the government has proposed a new tax based on weight," NAF spokesperson Thor Egil Braadland said."The electric car has become the new normal car for Norwegians, and that means we have to look into how we are using society's funds," Labour's Johan Vasara, a state secretary at the Norwegian transport ministry, said."