They're not even close.
Electric vehicles have zero tailpipe emissions.
Every gallon of gasoline used by an internal combustion vehicle adds about 20 pounds of CO 2 to the atmosphere. So vehicles powered by electricity or other alternative fuels can keep tons of CO 2 out of our air. Electric vehicles decrease pollution to oceans, rivers and groundwater caused by petroleum, gasoline and motor oil spills. They use 40 to 50 percent less energy than similar gasoline-powered vehicles, making more efficient use of natural resources. And because they are quieter than internal-combustion engines, electric vehicles help reduce urban noise pollution.