Car makers are typically on the conservative side, and they aren't really in a position where their own data would be particularly valuable compared to that of other players.
What mostly happens is that data sharing goes both ways: for instance if your embedded navigation system shows live traffic data, your car is probably sharing its location upstream, which gets aggregated and anonymized according the legal framework and the terms between both parties.
You can do stuff with a car that you wouldn't be able to do with a smartphone, for instance using sensors to scan curbside parking, whereas Google needs to extrapolate street parking availability based on driving patterns. But I'm not aware of anyone doing that yet... I've only seen proofs of concept.
This is what I've seen. It also makes sense from a legal point of view (at least here in Europe) and more importantly, from a practical one. If you're Here or TomTom you want to provide good data and you need OEMs to share theirs in return. However keeping (or worse, sharing) events associated to VINs or other PII is just a liability.
What mostly happens is that data sharing goes both ways: for instance if your embedded navigation system shows live traffic data, your car is probably sharing its location upstream, which gets aggregated and anonymized according the legal framework and the terms between both parties.
You can do stuff with a car that you wouldn't be able to do with a smartphone, for instance using sensors to scan curbside parking, whereas Google needs to extrapolate street parking availability based on driving patterns. But I'm not aware of anyone doing that yet... I've only seen proofs of concept.