Automotive Value Chain Profit Share
An identical graphic of "The U.S. Auto Industry's Profit Pool" is found in a presentation document titled, "Business-Level Strategy — Creating and Sustaining Competitive Advantages" by Prof. Rushen Chahal and published on Scribd by Dr. Singh on June 25, 2016.
The graphic is on page 25 and is titled, "U.S. Automobile Industry's Profit Pool".
It is an identical chart illustrating the entire value chain from manufacturing to aftermarket/rental, and shows profit share and profit margins, all from one source.