Electric vs gasoline vehicles: electric pollution more seriously?

Electric universal road to responsibilities
Although electric cars has been developing rapidly in recent years, but it is clear that electric cars is still in developmental stages, from which is not fully mature technologies and lower sales can see. Electric advantages, shortcomings are obvious.
Compare petrol locomotive, electric running costs are too low, we take into account the three litres of oil, gasoline prices 5.51 Yuan per liter (8 oil than in previous years, is already very low). Three degrees of 1.71 Yuan, comparing the price of oil, still huge advantage.