I agree, rigid barrier tests 'ideally' result in the same KE loss and deformation forces as a 'balanced' head-on collision. So a 40MPH barrier test would be the same as two Delorean's colliding head on while both are traveling at 40 (in which they would both crumple-a- bit and come to a complete stop). I think the primary difficulty with automobile safety and testing is the disparity in bumper heights. These barrier tests assume that the bumper will be the interface between the two vehicles, which in general is not always the case, and certainly not always true with the Delorean. (I think about that every time I am sitting at a light and looking 'up' a truck's bumper). But if you look at the footage, the results don't look that bad. Remember that the really telling bit of data is deceleration forces on the occupant (hopefully far less than what the car went through). It would be interesting to find more information/analysis of these tests. -Nate 11501 --- In dmcnews@xxxxxxxxxxxxxxx, "Cameron, Peter" <cameron@...> wrote: > > the statement below about fixed wall at 40 mph being equivalent to two cars crashing head-on at 60-80 mph is not true. If two equal weight cars travelling at the same speed crash head-on, they both stop dead, same as if one of them had hit a fixed wall instead of another car of equal weight coming from the opposite direction at the same speed. [long quote trimmed by moderator] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/