Needs or Wishes?

Everybody always needs something. Needs are never ending. When one need is satisfied then a new need emerges and hence, the cycle of need keeps going. However, some needs are not needs actually, they are just wishes that people misunderstand as needs.

What about the need for new cars? or just wishes? 

For me, I'm not so sure though... whether it is "keperluan" or "keinginan" at this point of time.