My sister in-law works for an insurance firm and happens to tell me different. It AIN'T the wiring that causes the cars to get totaled, it's the hidden areas that never gets cleaned and the water/ corrosion get into everywhere ,seats and carpet trap water and mold, electronics get ruined and all the Seals in the windows,doors headlight,tailight and trunk area trap the moisture causing problem later on in the cars life , it's all about cost. if they had to replace everything that traps moisture they would be out even more that the (any) car was worth. if it was just about wiring they could have easily replaced the wiring and been done with it. fact in point during the 09 Atlanta flood a friend of mine had a 2000 F-150 that had some water damage, water went up to the rockers and never got any higher than that (flood damage in his garage walls showed the high water mark so we knew how high the water had risen) they totaled the truck not because of wiring or anything else but just because water had hit the rockers and gotten the carpet wet. cheaper to let him get a new truck than fix the rocker problems he would have had.
