[jogjayr]

> Even if we don't consider the fact that the cost of vehicle depreciation, maintenance and insurance is an "almost-fixed" or marginal cost because you are going to own the vehicle and pay for the insurance any way,

But all of these costs go up if you drive more miles. Your vehicle depreciates more if you put more miles on it (but not if it's parked in your garage), you need more frequent oil and tire changes, and your insurance rates go up because you're more likely to make a claim the more miles you drive annually. And rideshare insurance is more expensive.