[JM 35 Sedan]

I've trailered early Fords with soft center of top construction (pre '37's) all over this country on open trailers and never had an issue with blowing out the tops. This included many miles on the Interstates doing the posted speed limits, and some times there were open windows on cars being trailered. If these tops had been in poor condition to begin with, maybe I would have had some problems.
My biggest concerns have always been with other cars and trucks and their crazy drivers. We had ice on roads all over our State yesterday morning, and hundreds of car and truck pileup's everywhere because many folks did not have enough sense to slow down and take it easy during bad weather conditions. Unfortunately it cost some of these folks their lives.