翻译：人们普遍认为，买车不贵养车贵。(it)

People generally believe that it is more expensive to keep a car than to buy a car.

it is commonly considered that taking care of a car is more expensive than buying a car.

in general, people think that it costs much more on car maintenance than (buying?) the car itself.

It is widely believed that to matain a car costs more than the car itself.

It is considered that maitainance of car is more expensive than buying it.

Most people think that your car does not raise your car