The incumbent being the concept of a car (EV or ICE) that you own and that you have to drive to get to places.
Don't compare the Tesla MVP with an existing concept of a car.
Demand for new "car" is a noise. Austin FSD launch is the key differentiator and I foresee lot of sleeping on the floor moment from Elon to see it through. But if they do, the 100 year old concept of a "car" will be completely redefined.