Over 80 percent of new cars sold in Norway were electric in 2023::New figures released by the Norwegian Road Federation say 82.4 percent of new cars sold in the country last year were electric, up from 79.3 percent in 2022. Tesla, Toyota, and Volkswagen were the most popular brands, with Tesla’s Model Y making up almost a fifth of new sales. Reuters notes that Norway intends to end the sale of new petrol and diesel cars in 2025.
It really depends on exactly what you’re measuring and what your goals are (and thus, what the law does/should say). Is the goal to reduce the amount of fuel (petrol) used? Then yes, tax incentives should apply via whatever metric you’re using. If the goal is to incentivize a switch to a different fuel source, regardless of efficiency, then no.
Many people with plugin hybrids only add gas a few times per year. The (small) battery is enough for them ~95% of the time. For most (but not all) purposes, that would count as an EV. I can see your point about them not being the same, and why it would need to be handled separately, but it feels too absolutist. There are certainly shades of gray in it.