What Should Be the Budget for a Decent First (Secondhand) Car?

First time driver here (M25), earning around Php 80k net. I just need your insights lang po on what budget should I set for my first car. I prefer secondhand one since I'm only a beginner - probably sedan or an MPV. Yung mga models na natingnan ko na before ay Honda City RS and Honda BRV.

Thank you po mga ates and kuyas!