Inventory Aging Calculator
See how much of the lot is aging and how much estimated cost is tied up in those units.
Open CalculatorDealer books, operating tools and direct strategy built around the pressures that actually break stores: cash, inventory, funding, sales, systems, BHPH and growth.
The books and tools came after the dealership years. These are real images from the store and the 2023 dealer recognition Eric earned while operating it.


The site is designed to help a dealer move from a problem to a useful tool, then to the book that goes deeper.
See how much of the lot is aging and how much estimated cost is tied up in those units.
Open CalculatorTen controls for the leaks that quietly drain a store before the owner sees the damage.
Open ChecklistA practical order of operations for licensing, cash, first inventory and basic controls.
Open Startup MapThe original Playbook starts the library. Books 1–10 go deeper into specific operating problems. The Auto Dealer Intensive ties the system together. If you are not sure which specialized title is live yet, start with the original or text Eric the pressure point.
The Intensive is the hub of the catalog: high value on its own, but designed to identify what the dealer should work on next—inventory, sales, cash, BHPH, management, scaling or systems.
A reader can go from a chapter to a free GT Playbook resource, from one book to the next focused title, or from the library to direct help when the store needs it.
See the 12 BooksSpanish, German and Brazilian Portuguese pages are open for written contact and free tools. Translated book editions appear on those pages when they exist. They are not claimed as live until they are.
Text or email the problem. Eric can point you toward the right book, resource or next step.