i would prefer brand new since it has a warranty in case something goes wrong with your car. here are my choices on what you can buy with a P500k budget:
-> Hyundai Getz Upgraded Gas 1.1 MT - P498k
-> Hyundai i10 GL MT - P478k
-> Chery QQ - P349k to P399k
-> Suzuki Alto Deluxe - P408k
unfortunately, all of the cars on the above choices are gasoline.
but if you really wanted a much bigger vehicle, a second hand would suffice. just make sure that you bring with you a mechanic to inspect the vehicle before purchase just to make sure that you're buying a road worthy vehicle.
good luck!
