It has a long history. Pop group a-Ha began promoting EVs in the country in 1989. From 1990, EVs were exempt from purchase and import taxes. From 2001, they were exempt from the VAT (the equivalent of the GST). From 1997 to 2017, they didn’t get charged road tolls or ferry tolls. And electric vehicles are free to use bus lanes (though I’ve heard people complain that that now tends to clog up bus lanes, simply because there are so many EVs). The Norwegian electric vehicle association lists fifteen incentive schemes here, and they’ve all contributed to the rising share of electric vehicles within Norway’s fleet.
These tax cuts are set to be in place until the end of 2021, meaning the records will probably just keep being broken. This transition was far from organic. It was created and sustained by a set of conscious and significant policy decisions. Norway’s air is cleaner and transport emissions lower thanks to these specific policies.The electric recipe of Norway’s zero emissions transport boom | The Driven