In general as well as specific to automotive and avionics domain, for the efficient and secured system use case:
In a complex embedded system, controlling latency and jittering has become very much relevant to address above use case scenarios 1 and 2.
There is huge ongoing industrial bubbles and adaptation also is going on with Ethernet along with Flexray, CAN and LIN.
But keeping multiple network protocols and increasing number of ECUs in mind, Ethernet as it is doesn't look sufficient to consider in system design to address the above mentioned use cases 1 & 2 in long term.
In connected and autonomous vehicle context, one of the solution is TSN to control near to convincing level of latency, at the same time many researcher bubbling about 5G for connected and smart vehicles as well.
Here the question: is TSN +5G can address the above 2 use cases?
Experts logical PoVs are expected.
"2. Speed at nanometer level resolution" : nanometer cannot be a correct unit for speed, but only for length, distance, or position. Speed is measured e.g. in m/s .
Assuming you mean "position" : there are currently no devices that claim to establish position of a vehicle at the nanometer, and no use case where this would be useful in the automotive or avionics domain.
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