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Regardless of increased attention in electric vehicles (EV) market expansion, the actual penetration of EVs remains low globally. Almost all major OEMs have announced investment plans to ensure that EVs constitute a major, if not complete, chunk of their product portfolios. On their part, governments worldwide (e.g., China, Poland, India, USA, etc.) have used various policy measures to facilitate EV adoption. In this paper, we study how incentives offered in terms of subsidy and differential taxation schemes could increase the market penetration of EVs. We analyze different models under uniform and differential taxation policies with and without subsidy, using a non-cooperative game-theoretic approach. Our analysis reveals that the government can follow any of the three tax-subsidy mixes that could maximize social welfare, i.e., differential taxation with and without subsidy, and identical tax with a subsidy …