I was reading a private crash research company (USA) article today (you hire them to get info to use in court cases) and they specified that one of the methods they use is to plug into the crashed vehicle(s) ECU and download data of, and immediately prior to, the accident. Vehicle speed, engine rpm, throttle percentage, brake circuit activation, and velocity change was some examples they gave. Apparently this sort of info is available in any car/bike with an ECU (98% of cars built in last 7 years they claimed). This info could then be used to determine if you, or the other party, anticipated/reacted to the accident or not, response times (both to the accident going to occur and between avoidance techniques), sequence of events (throttle closing, braking, etc), and also how close you or the other party came to using full braking ability of the vehicle. Was an interesting article/blurb .. wish I had access to a scanner at the time. I wonder if anyone has come across any incidents of such downloading of ECU data techniques being used? Apprently this company was being rushed of it's feet for it's services and had close to a 2 mth waiting list ... lawyers wanting to prove other parties didn't brake/respond etc. for damages cases and stuff. I wonder what the likelyhood, when insurance companies take possession/ownership of written-off vehicles, of them either now or in the future performing such data downloads from the ECU's and determing insurance payout approvals/knock-backs based on the information it contains? Especially since the ECU's would likely (can anyone confirm?) hold/contain vehicle speed immediately prior to an accident or at the time of reaction. Imagine your insurance comapny denying your crash claim due to the ECU showing you were doing 127 km/h immediately before you went wide on a corner and crashed!