The electric vehicle is becoming more popular these days in developed countries. Most developed nations now allow and encourage the use of plug-in-electric vehicles instead of conventional vehicles that pollute the environment, for instance, the global successive sales of plug-in electric vehicles reached 5 million in 2018. (Wikipedia) Many users of electric vehicle find it more economical than the conventional vehicle which has high cost of maintenance. Here are some countries that allow the use of electric vehicles: Australia, Austria, Belgium, Brazil, Bulgaria, Canada, China, Chile, Colombia, Costa Rica, Croatia, Czech Republic, Denmark, Estonia, Ecuador, Finland, France, Germany, Greece, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Italy, Japan, Kosovo, Latvia, Lithuania, Mexico, Netherlands, New Zealand, Norway, Pakistan, Philippines, Poland, Portugal, Romania, Russian, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Taiwan, Ukraine, United Kingdom, and United States. (Wikipedia) There is no gainsaying that, electric vehicles are used in many nations, though they are expensive, yet they are cost effective and easier to maintain than conventional vehicles and more importantly, they are safer for our environment.