This has been a pretty quiet thing up till now, but I suspect it will get noisier soon. New Federal regulations now require that all new cars have a Black Box, a la airplanes, installed into them. The idea is to be able to reconstruct events prior to an accident:
To the extent that they can clarify the events leading up to an accident – which may point to anything from alcohol intoxication to malfunctions in equipment – this seems like a good thing. But its also a privacy issue that needs to be address. How long is this data being stored and who has access to it?
There is also an issue of data interpretation: because certain conditions were present at the time of an accident does not necessarily mean that a single conclusion could be made. Add to that, as the article points out, the fact that your phone is tracking you too and it starts to look a whole lot less benign.