Pay it forward

I am trying to raise enough money to help a family in need. this family will be left nameless, as I don't  want them to know what I am doing until they get the car they need.! this means the world to me, because when  in a tough  spot in my life a very wonderful family stepped in and gave me not only a place to stay but a direction my life should be heading,that is all I am trying to do for someone. pay it forward Iwill be paying the other half of the car,I just cant do it all on my own so the help would be greatly appreciated