Explain to me this please. If there is no god and everything is a random happening. Everything we see could make it self your saying. All the atoms are there so anything is possable. So heres my question.

Why have you never found a Working Car? or a toaster? That came from nothing. All the atoms exsisted. and in your random world anything is possable. If a complex thing such as life just happen to form why not everything else? Why do things need a creator?