And able to go to places (within a few meters, or less) where there are no rails, variable size (when was the last time you had a train deliver a single refrige

And able to go to places (within a few meters, or less) where there are no rails, variable size (when was the last time you had a train deliver a single refrigerator), and flexible to change where to drive and where to without the decade or so it takes to get a new railway and stations planned, approved, build and operationalized.