Wouldn't it be the other way, through fleet network effects? For example, your fleet of low- or zero-emission vehicles would greatly offset the average vehicle

Wouldn't it be the other way, through fleet network effects? For example, your fleet of low- or zero-emission vehicles would greatly offset the average vehicles that people would have been using instead. Also, zero occupancy vehicles never have to drive around looking for parking near their destination. They are immediately reusable or could go to an out-of-the-way pool.