Car Price Difference between Western & Indian Market

@SVP Hey #svp it can be a foolish question but there is always a huge difference in the prices of same cars sold in India & USA… I know there are many aspects like excise/import duties & others too, but still the difference is bigger than huge, e.g. BMW Z4 35i stars at $49700 (approx. INR 30,00,000) in US while in India it is priced at INR 74,90,000 which is almost two & half times more in India. Can you explain this things in details & also tell me when can the scenario will be same in our country??