[legenmetals]

Interesting Post. Yesterday I noticed a 3 inch indentation on the fender of my Contemporary. This indentation is barely noticeable, I only noticed it because of the lighting. This car has been on a jack stand (one stand only same corner as fender) for three months. The other corners are on the tires.
So today I went to the body shop that last did the work for me and the owner explained that on a fiberglass Cobra where any two panels are bonded (as the fender and foot boxes are on this car) you can over time see the movement in the fiberglass. The tension between the two fiberglass panels is causing the line that I am seeing.
He then showed me a steel fender with an inner support that was installed so that it backed up the outer skin of the fender but was not attached directly to the skin itself of the fender. He explained to me that the heat of the sun on the outer skin would cause the skin to expand quicker than the support and create a flaw in the finish of the fender.
He told me fiberglass will always move.
I would have to assume that a stiff chassis with the latest suspension and the body firmly mounted to the chassis is the trick way to go.
Just a note....... Henry Ford designed his early cars so that the chassis would flex with their buggy spring suspensions and rivited frames.