点数は分からないけど、暇だったんで添削した。当方、1級1次試験突破。

解答
I believe that the number of cars in cities should not be limited.
There are two reasons.
First of all, if the number of cars is limited, car companies cannot sell their cars and it will damage the economy.
Also, today, the car technology has been improved, so large amounts of gasoline is not wasted.
Because of all the reasons above, I believe that the number of cars in cities should not be regulated.