A silent revolution has transformed driving in Norway. Some 30 percent of all new cars sport plug-in cables rather than gasoline tanks, compared with 2 percent across Europe overall and 1-2 percent in the U.S. As countries around the world - including China, the world's biggest auto market - try to encourage more people to buy electric cars to fight climate change, Norway's success has one key driver: the government. It offered big subsidies and perks that it is now due to phase out, but only so long as electric cars remain attractive to buy compared with traditional ones. It should always be cheaper to have a zero emissions car than a regular car," says Climate and Environment Minister Ola Elvestuen, who helped push through a commitment to have only sell zero-emissions cars sold in Norway by 2025. To help sales, the Norwegian government waived hefty vehicle import duties and registration and sales taxes. Owners don't have to pay road tolls, and get free use of ferries and bus lanes in congested city centers. These perks, which are costing the government almost $1 billion this year, are being phased out in 2021, though any road tolls and fees would be limited to half of what gasoline car owners must pay. Gradually, subsidies for electric cars will be replaced by higher taxes on traditional cars. Some 36 percent of all new cars sold are SUVs, which provide safety in the country's tough winters. Tesla's SUV, the Model X - the motor of choice for well-to-do environmentally-minded Norwegians.