Why aren't car manufacturers already in logistics business? Or are they? I'm trying to find sources. I see VW has its own logistics group, but only for their own use.
In the US at least (I haven't ever bothered to look at how branded car dealers exist outside the US), they already have a network of physical locations where they can ship anything and service anything they sell. There are also the rental agencies and the people that manage fleets of private vehicles that work directly with the local dealers on behest of the global organization- Uber doesn't have this and would have to build it. Right now they are pushing that part of the logistics of their organization on their drivers since it is their own personal vehicle.
This is something you can see Tesla having to do the hard way in comparison with their coast to coast supercharger network. There was no physical infrastructure to support their product so they had to build it, and established car dealers already have it which is part of why Tesla overcoming that was such a challenge. If I have a US make car in the US and I am in a moderately populated area I can make a reasonable assumption I can get to a dealer in an hour or two wherever I may be, and Uber would have to overcome that.