Norway is by far the world leader in electric cars. The zero-emission vehicles make up almost 30% of the total market. But now, the government is putting the brakes on some of the subsidies that revved up this market. A proposal , presented as part of next year’s budget, has been put forward to remove a tax exemption on electric vehicles that weigh more than two metric tons. The move has been dubbed the “ Tesla tax ,” as it’s most likely to effect the American company’s models, particularly the Tesla Model X, an SUV. There are more than 13,000 registered Teslas in Norway, according to data from the national statistics office. The tax would increase the cost of buying a new Tesla X by about 70,000 kroner ($8,850), local media said (link in Norwegian). Norway’s finance minister, Siv Jensen, justified the proposal by arguing that the heavy cars caused as much damage to the road as gasoline and diesel cars, so electric-car owners should contribute more to the cost of...