The €450 answer
The final chapter returns to the household question and asks whether a system that preserves mobility, technical value and material capital can also make continuity economically competitive.
Part 12 set a boundary for the whole proposal: continuity is justified only while it serves the people and businesses depending on it. We can now return to the family at the Agency: four people, luggage, regular journeys to the mountains and a budget of €450 a month for the fixed Mobility Rate. Energy and other variable use costs are additional. The requirement describes an outcome before it describes a vehicle.
The proposed Agency would look for a suitable asset and a credible service arrangement. It might find a vehicle already in the fleet, rather than commission a new one. It might also conclude that the budget is insufficient. The answer should follow from the requirements and costs, without inventing a residual value or omitting a necessary service to make the number fit.
The series ends with that test. MML has a conditional numerical answer for a reference household, a partial computational implementation and a much wider industrial proposition. Keeping those three things distinct makes the conclusion more useful.