It seems that u-blox now have an interesting chip coming, according to
the press-release it has L1/L2/L5 and GPS, GLONASS, GALILEO and BEIDOU
capability, with RTK support as an option.
As I have suggested before, the precision would fit the purpose of
identifying which lane a care is in, something they make explicit
reference to as a use scenario.
As for timing support not much is known, but it is interesting.
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