In you Forbes article concerning the differences between Barra and Amman in the AV business model, I would like to add who receives cash flows in service vs ownership models. Of the roughly $600 per month spent on an automobile, the manufacturers only receive $350 with the remainder going toward insurance, maintenance, fuel, etc. Under a service model, manufacturers can claim the entire $600 monthly amount consumers are now paying and with vertical integration (including electrical production for fuel) have complete control of the supply chain to operate the fleet