In 2018, in NSW, the Pink Slip price for light vehicles, i.e. cars and not cars or motorbikes is set by the government at $37.40.

The mechanics should check a few things, which would make the car unsafe to drive, if faulty. It is very important to get those things checked, and fixed if necessary. 

The business directory on this website has a list of mechanics, which might be able to help (link below.) Please, make sure you add more mechanics to the list by clicking here. 

https://newaussie.com.au/car-maintenance