Prefab sinks in the plane

[HerbieFirst]

I made a prefab of this GameObject. If I now drag the prefab onto the scene, the vehicle sinks into the plane!
Why?

Another question: Why do I have white as the color in my scene and in the course the color is a bit brownish?

[bixarrio]

The reason it sinks into the plane is because the prefab’s origin (the position where the 3d widget sits) is in the center of the prefab. You can fix it by going into the prefab and move the model up until the bottom of the model is on the same level as the prefab root’s origin

The reason your scene is white and the lecture’s isn’t is likely to do with lighting. I think if the scene in the lecture had to generate the lights it would turn white too