High torsional rigidity is a good thing, as it makes the suspension do most of the work and typically leads to a car with more predictable handling. A flexible frame can work as long as the designers take that flexibility into account when they are designing the suspension. Lotus had been working with backbone frames since the 60's in three different applications (the Europa, Elan and Esprit), so they knew the math. A key element in a backbone frame construction is the rest of the bodywork, as it provides some of the structural rigidity in the assembly. -- Mike ________________________________ From: Farrar Hudkins <fhudkins@xxxxxxxxx> To: dmcnews@xxxxxxxxxxxxxxx Sent: Tue, March 20, 2012 6:19:18 PM Subject: Re: [DML] The COMPLETE DeLorean crash test videos, report and more. I think I would rather have a frame which is flexible than one that is too rigid. From what I understand, a vehicle frame doesn't just carry the load above it -- it absorbs engine and driveline torque, endures shock loading, and accommodates twisting on uneven road surfaces. I think the DeLorean frame was probably the best of all possible options at the time -- rigid enough and yet flexible enough to perform adequately, not heavier than it needed to be, and self-sacrificial in the event of an accident. Farrar Hudkins #2613 [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ 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/dmcnewsYahoo! 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: dmcnews-digest@xxxxxxxxxxxxxxx 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/