For the crew. so they can determine whether or not track conformance was required. the video we re looking at here it s interesting because this looks like this is the first car because of the windshield it looks like it s the front car which has said to be the business car or the quiet car. not sure exactly which car that was. but that appears to be a front car. but the one following maybe 2 and 3, could be once again this, is all preliminary. we re just looking at what every one at home is looking at as well. how would that happen is that first car looks untouched, unscatheed but other two just mangled? i ve seen mechanical aspect ....