Sales of electric and hybrid cars rose above half of new registrations in Norway in 2017, a record aided by generous subsidies that extended the country’s lead in shifting from fossil-fuel engines, data showed on Wednesday. Pure electric cars and hybrids, which have both battery power and a diesel or petrol motor, accounted for 52 percent of all new car sales last year in Norway against 40 percent in 2016, the independent Norwegian Road Federation (OFV) said. “No one else is close” in terms of a national share of electric cars, OFV chief Oeyvind Solberg Thorsen said. “For the first time we have a fossil-fuel market share below 50 percent.”

Norway exempts new electric cars from almost all taxes and grants perks that can be worth thousands of dollars a year in terms of free or subsidized parking, re-charging and use of toll roads, ferries and tunnels.

It also generates almost all its electricity from hydropower, so the shift helps to reduce air pollution and climate change.

Last year, the International Energy Agency (IEA) said Norway was far ahead of other nations such as the Netherlands, Sweden, China, France and Britain in electric car sales.

By the IEA yardstick, which excludes hybrid cars with only a small electric motor that cannot be plugged in, electric car sales in Norway rose to 39 percent in 2017 from 29 in 2016, when the Netherlands was in second on 6.4 percent.

Norwegian car sales in 2017 were topped by the Volkswagen Golf, BMWi3, Toyota Rav4 and Tesla Model X. The Tesla is pure electric and others have electric or hybrid versions.

In many countries, high prices of battery-driven cars, limited ranges between recharging and long charging times discourage buyers. Car makers say the disadvantages are dwindling over time with new models, according to Reuters.