If GM was moving the same number of units as Coca Cola they wouldn’t be in this mess. You can over penetrate markets, Krispy Kreme and Starbucks both recently proved that.
Not a good example.
You usually don't have to take out a loan for a Coke, Kryspy or a Starbucks. And the purveyors of said brands don't need acres and acres of land to stock the product. Nor does their inventory require million$ to procure.