1.When answering this question, consider the various challenges the government might face in replacing petrol cars with electric cars. These challenges could include the cost of infrastructure development, such as building charging stations, the economic impact on industries related to petrol cars, and the need for technological advancements in electric vehicles. 2.You can also discuss the social and environmental benefits of making this transition, such as reducing carbon emissions and pollution. Additionally, consider the role of government policies and incentives in encouraging the adoption of electric cars.