Well, compare to the UK. Here we have low taxes on cars and are often incentivised to purchase new ones. This supports car manufacturing, which is a very signif

Well, compare to the UK. Here we have low taxes on cars and are often incentivised to purchase new ones. This supports car manufacturing, which is a very significant industry for the UK, employing more than 800,000 people. New cars (dieselgate aside) are generally better for the environment too. But aside from occasional temporary scrapage schemes, there isn't really much incentive to get rid of old ones. This not only results in congested roads but also towns and city streets that are cluttered with parked and often rarely-used vehicles occupying every available space and greatly reducing the "public realm" that could be used for other, healthier and more productive purposes. So while Denmark's high taxes on new vehicles may not produce the best outcomes for the quality of the vehicle fleet, it does seem to have been effective at reducing the total number of vehicles. Perhaps, like in Japan, annual registration fees/taxes should start increasing after the vehicle is a certain number of years old, making it expensive to retain ownership of old vehicles.