Your use case is very limited. Using cabs instead of driving to work at a similar price point would cover majority of the population. Most costly part of a cab is the driver's time. I can browse my phone during my commute which i can't even do with my Tesla and Autopilot.
Most estimates put cost of the driver in a cab at about 50%. So if the cost of the car doesn’nge you half the cost of a cab. So maybe $1 per mile? 2x the IRS deduction for driving seems a reasonable ballpark for a managed service.
