Nowadays cars have become a basic necessity in our day to day life and hence their number has grown large especially in metro cities.  This enormous increase in four wheelers has led to various problems. This essay will discuss some of the problems associated with this issue and put forward some solutions for the same.
The first and foremost problem caused by the increase in the number of cars is traffic congestion in metro cities. Because cars have become cheap more and more people are buying them and this in turn leads to more traffic. Tata Nano launched by Tata motors in India in year 2000 has helped a large number of middle class families to own their car.
The second problem linked with on road cars is air pollution which causes health hazards at a high rate. Air quality in metro cities has degraded so badly that it is very difficult to breathe in these urban areas. A survey conducted by the government of; always write the government of Delhi in year 2015 showed increased number of asthma patients due to poor air quality.
Solutions to the aforementioned problems / the problems discussed above could be to improve the quality of public transportation so that people will prefer to opt for metro or bus services instead of their private vehicles. Secondly there should be a ban on vehicles causing air pollution above a threshold value. The government should impose heavy fines on people breaking these norms.
To conclude, the increase in the number of cars causes air pollution and traffic congestion in cities. Improving the reliability of public transport is the best possible solution to this problem. 
Nowadays  
cars
 have become a basic necessity in our  
day to day
 life and  
hence
 their  
number
 has grown large  
especially
 in  
metro
  cities
.  This enormous increase in four wheelers has led to various  
problems
. This essay will discuss  
some of the
  problems
 associated with this issue and put forward  
some
 solutions for the same.
The  
first
 and foremost  
problem
 caused by the increase in the  
number
 of  
cars
 is traffic congestion in  
metro
  cities
.  
Because
  cars
 have become  
cheap
 more and more  
people
 are buying them and this in turn leads to more traffic. Tata  
Nano
 launched by  
Tata motors
 in India in year 2000 has  
helped
 a large  
number
 of middle  
class
 families to  
own
 their car.
The second  
problem
 linked with on road  
cars
 is  
air
 pollution which causes health hazards at a high rate.  
Air
 quality in  
metro
  cities
 has degraded  
so
  badly
 that it is  
very
 difficult to breathe in these urban areas. A survey conducted by the  
government
 of; always write the  
government
 of Delhi in year 2015  
showed
 increased  
number
 of asthma patients due to poor  
air
 quality.
Solutions to the aforementioned  
problems
 / the  
problems
 discussed above could be to  
improve
 the quality of public transportation  
so
 that  
people
 will prefer to opt for  
metro
 or bus services  
instead
 of their private vehicles.  
Secondly
 there should be a ban on vehicles causing  
air
 pollution above a threshold value. The  
government
 should impose heavy fines on  
people
 breaking these norms. 
To conclude
, the increase in the  
number
 of  
cars
 causes  
air
 pollution and traffic congestion in  
cities
. Improving the reliability of public transport is the best possible solution to this  
problem
.