Standardizing on sensors and communication protocols can only be a good thing, and the talks about making an "open" self-driving platform are enouraging. Time will tell if it's going to pan out and whether the need for quotes around open.
For most purposes though, a few linked to odometer reading, measured at mandatory "car health check-up" time and maybe amortised over the intervening period would be just fine, and require no new tech or tracking. Maybe tie it to insurance somehow?