I agree with redorange, best and cheapest don't always go together.

Cheapest? You can get a 70's Corolla or Lancer for just about 25,000 pesos. If you're a handy mechanic and know how to pop out dents and apply paint, repair cost should be minimal.

You can also get a 90's midsize car for just 50,000... just look for a Daewoo.

Best car? 95 Lancruiser VX? But secondhand prices are godawfully high.

Opinions may vary.