I would suggest getting an Elantra as a project car, but you would have to get performance parts from abroad. Last time I've checked, a used Elantra costs around PHP 150K. That gives you PHP 200K to play with. If I have that kind of money, I would source a 2.0 Beta engine, race coilovers, and other tasteful mods in Korea, then pay the government for the importing tax stuff whatchamacallit. Now you got a sleeper car.