I have corrected the grammar and changed some of the wording.  It still sounds like it was written by someone who is learning English, but I didn't want to change too much or you wouldn't understand why I made the changes.  Overall, your entry was easy to understand even with the grammatical errors.  Also, I agree with the premise that cars can enslave us.

Cars enslave us rather than free us

It may be a common knowledge that everything in this world can be percieved in oppositions. It means that everything can have two sides, either advantages or disadvantages. No doubt, it also can be related to the use of cars for several reasons.

A person who is going to buy a car often is driven by its benefits such as an easy way of locomotion, which is, of course, perfect, because you can go where you want when you want.  You do not have to wait for or depend on any city transport.  It brings a feeling of freedom. 

However, there is another point of view. This freedom may not really be the freedom which was expected. It is imporatant to recognise that a car requires a lot of money for fuel, for the yearly technical survey (I don't know what you are referring to, maybe annual license renewal), for fines, for insurance, and for buying new parts if something is wrong with the previous ones.  It comes to mind, that it is necessary not only to earn money to buy a car, but also to earn additional money to support it all the time.

(We ususally don't think of fines as part of the cost of owning a car.  So I would just remove fines unless you meant fees, such as license fees or tollway fares.)

Of course, an additional disadvantage that cannot be ignored is that cars damage our environment by the gases they produce. Nowadays the number of cars is increasing and the most important consequence is the alarming rise in the levels of pollution.

Taking all things into consideration. it might be said that cars enslave us rather than free us.

 Cars enslave us rather than deliberate us (rewritten version)
 It may be a common knowledge that everything in this world can be perceived in oppositions. It means that everything can have two sides, both positive and negative. No doubt, it also can be related to the use of cars for several reasons.

 A person who is going to buy a car often is driven by its benefits such as an easy way of locomotion, which is, of course, perfect, because you can go where you want when you want. You do not have to wait for or depend on any city transport. It brings a feeling of freedom.

 However, there is another point of view. This freedom may not really be the freedom which was expected. It is important to recognize that a car requires a lot of money for fuel, for an annual license renewal, for insurance, and for buying new parts if something is wrong with the previous ones. It comes to mind, that it is necessary not only to earn money to buy a car, but also to earn additional money to support it all the time.
 It is important to add that a lot of people tend to overuse cars reducing their physical activity to nothing. It leads to bad consequences for health and often these consequences are irrevocable.

 Of course, an additional disadvantage that cannot be ignored is that cars damage our environment by the gases they produce. Nowadays the number of cars is increasing and the most important consequence is the alarming rise in the levels of pollution.

Taking all things into consideration, it might be said that cars enslave us rather than deliberate us.

Cars enslave us rather than deliberate

 It may be a common knowledge, that all in this world can be perceived in oppositions. It means that everything can have their two sides either positive or negative. No doubt, it also can be related to a use of cars for several reasons.
A person who are going to buy a car often is driven by its benefits such as an easy way of locomotion, what is, of course, perfect, because you would not have to wait for any city transport, you could not be depended on it, you could go where do you want and when do you need. It brings some feeling of freedom.
However, there is another point of view. This freedom can be not really that freedom which once was expected. It is a matter of great importance to recognize that car requires a lot of money for power, for every year technical survey, fines insurance, for buying new details if something is wrong with the previous one. It can be said that it is necessary not only to earn money to buy a car, but also to earn additional money to support it all the time.
It is important to add that a lot of people tend to overuse cars reducing their physical activity to nothing.
Of course, an additional disadvantage that cannot be but mention is that cars damage our nature by gazes which they produce. Nowadays the number of cars is increasing and the most important consequence is the alarming rise in the levels of pollution.
Taking all things into consideration it might be said that cars enslave us rather that give us a freedom.

Cars enslave us rather than deliberate(just an essay for my class)

It may be a common knowledge, that all in this world can be percieved in oppositions. It means that everything can have their two sides both positive and negative. No doubt, it also can be related to the use of cars for several reasons.
A person who are going to buy a car often is driven by its benefits such as an easy way of locomotion, what is, of course, perfect, because you do not have to wait for any city transport, you should not be depended on it, you can go where do you want and when do you need. It brings some feeling of freedom.
However, there is another point of view. This freedom can be not really that freedom which once was expected. It is a matter of great importance to recognise that car requires a lot of money for power, for every year technical survey, fines insuerance, for buying new details if something is wrong with the previous one. Sometimes such thoughts are coming to mind, that it is necessary not only to earn money to buy a car, but also to earn additional money to support it all the time.
Of course, an additional disadvantage that cannot being but mention is that cars damage our nature by gazes which they produce. Nowadays the number of cars is increasing and the most important consequence is the alarming rise in the levels of pollution.
Taking all things into consideration it might be said that cars enslave us rather that give us a freedom.

Cars enslave us rather than deliberate (just an essay for my class for practise)

 It may be a common knowledge, that all in this world can be percieved in oppositions. It means that everything can have their two sides either advantages or disadvantages. No doubt, it also can be related to the use of cars for several reasons.
  A person who are going to buy a car often is driven by its benefits such as an easy way of locomotion, what is, of course, perfect, because you do not have to wait for any city transport, you should not be depended on it, you can go where do you want and when do you need. It brings some feeling of freedom.
  However, there is another point of view. This freedom can be not really that freedom which once was expected. It is a matter of great importance to recognize that car requires a lot of money for power, for every year technical survey, fines insurance, for buying new details if something is wrong with the previous one. Sometimes such thoughts come to mind, that it is necessary not only to earn money to buy a car, but also to earn additional money to support it all the time.

 It is necessary to add that a lot of people tend to overuse cars reducing their activity to nothing.
  Of course, an additional disadvantage that cannot be but mention is that cars damage our nature by gazes which they produce. Nowadays the number of cars is increasing and the most important consequence is the alarming rise in the levels of pollution.
Taking all things into consideration it might be said that cars enslave us rather that give us a freedom.