Alpha mask creation for cars rendered on reflective backgrounds.

Take 13 - 1080p .PNG file images, and create an alpha mask for each one, including the glass areas, that allows the image to be placed on any background we choose. No “black” or colored “fringes” should be seen around the edges of the car, after the resulting image is placed on another image. The Alpha Mask should be saved as a separate layer. The whole thing can be delivered as a .PSD file. Here is an example of one file.