I expect some tuning around torque curves and the like, but electric drivetrains aren’t a pure positive for wear and tear - the heavier weight plus torque and g

I expect some tuning around torque curves and the like, but electric drivetrains aren’t a pure positive for wear and tear - the heavier weight plus torque and general drivetrain characteristics are murder on tires, suspension, and several other wear items on the vehicle. High duty, and especially high duty from taxi-style driving, is likely to impact wear as well. You’re right about the benefits of bulk maintenance, although I’m skeptical that a taxi operator will be able to pull off pure solar charging - typical electric car batteries are on the order of 40-60kWh, which is about what an average home uses in a day or two. Scale that up to a reasonably-sized fleet of electric vehicles, and I suspect any fleet operator will be buying their juice. The utilization rate on the vehicles will be interesting - browsing around a bit looks like an average cab runs between 70-100k miles per year (the car, not the driver - most taxis run multiple shifts), so call it ~200-300mi per day, so they ought to be able to make it the whole day on a single charge. Once you own the vehicle, though, it’s pay per use - as you note, if you’re not planning to sell it, it’s not really losing money sitting around. It’s not making money, but it’s also not incurring costs from operation.