This is Enron-level fraud. What would Ford/GM/Toyota's gross margins be without the cost of manufacturing vehicles?
More similar to if they took out the cost to design the cars and all the many levels of corporate overhead they have in the form of middle management.
That's a bit hyperbolic. It's closer to using EBITDA as your "earnings" and bucketing model costs in a rapid depreciation model (which is fair, I'd assume a model is good for more than just 1 year...