Throttle position and other data have been logged for a long time:<p><a href="http:&#x2F;&#x2F;www.caranddriver.com&#x2F;columns&#x2F;your-car-as-a-witness-for-the-prosecution" rel="nofollow">http:&#x2F;&#x2F;www.caranddriver.com&#x2F;columns&#x2F;your-car-as-a-witness-fo...</a><p><a href="http:&#x2F;&#x2F;www.edmunds.com&#x2F;car-technology&#x2F;car-black-box-recorders-capture-crash-data.html" rel="nofollow">http:&#x2F;&#x2F;www.edmunds.com&#x2F;car-technology&#x2F;car-black-box-recorder...</a><p>Now it&#x27;s standardized:<p><a href="http:&#x2F;&#x2F;www.cbsnews.com&#x2F;news&#x2F;new-law-mandates-black-boxes-in-all-cars-by-2015&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.cbsnews.com&#x2F;news&#x2F;new-law-mandates-black-boxes-in-...</a>