The driverless car that you rent will make the fixed costs of using a car go to zero but increase the marginal costs of driving (because there's a middle-man no

The driverless car that you rent will make the fixed costs of using a car go to zero but increase the marginal costs of driving (because there's a middle-man now). However, Jevon's Paradox crucially depends on the marginal cost decreasing, so I don't think Jevon's Paradox applies in this case.