Cars as such consume high fuel amounts and also parking space in country like india is always a problem. A car is an useful object when other modes dont give as much flexibility as they do. Close group commuting is the main advantage of a car.
The bike increases the ease of transport u can enter into a 4 feet wide road for urgent purpose and the cost effectiveness of the two wheeler, a regular pollution check measures could be very useful for a bike
Bikes generally cause lotta sound pollution and air pollution with so many vehicles on road and most of the times in countries like india where the bikers dont have lane phenomenon and even if it exists hardly any one cares to follow the rules