One of the things people often forget is to account for depreciation and running costs. Uber famously capitalized on this by pushing hidden costs onto drivers, so that Uber drivers usually don't understand they actually lose money on every ride once all costs are accounted for. Have you worked out the depreciation (especially the reduction in battery life, which is one of the huge hidden expenses in running an EV), the wear & tear on tires & brakes (all of which are expensive to replace), as well as the relatively trivial cost of charging it up after it's been used? Once depreciation and running costs are properly factored in, I'd be surprised if you were making more than a few dollars a day. Meanwhile one taxi ride over the weekend (because you don't have your car available) will wipe out even that slender profit.