I'm bothered by the "no matter whose data it was", especially for multi-car crashes and for crashes without other parties being hurt. In a multi-car crash, I'd

I'm bothered by the "no matter whose data it was", especially for multi-car crashes and for crashes without other parties being hurt. In a multi-car crash, I'd like to see this: all data is available for defense in court. For offense, you get your own data and you also get the common subset of data from every car. If somebody's car provides nothing, then nobody's data can be used for offense. Example why: Suppose your car records that you are going 20% too fast. The other person was going 150% too fast, but his car didn't record anything. It's not fair that he can use your evidence to prove that you are at fault. His failure to provide evidence lets him get away with much worse.