keeping the pic of the toycar
What's wrong about keeping the yellow car as a pic in addition to other pictures? I did that on purpose and if those who had deleted it would have read my comments, they would understand. So either I put it back there or the one who removed it will do so!!!
The toy car is just a placeholder until you have a real picture associated. I suppose if you really wanted it back, you could upload that picture yourself as the picture of the particular car and then set it as the featured photo.