To Whom It May Concern,
Nowadays, there are more and more people planning to buy their own cars. The following is my opinions regarding this issue.
First of all, car provide us with great convenience so that people can drive every where they want and save a lot of time. Car is also a very suitable transportation tool for travel. Furthermore, driving car is much safer than riding bicycles.精彩内容，尽在百度攻略：http://gl.baidu.com
On the other hand, the increasing number of personal cars causes severe problems, such as air pollution, traffic congestion and more accidents.
Therefore, I suggest that maybe the government can control the number of cars by regulations.