Even in the caravan demolition derbys, I've never once seen the chassis separate from the body.
Walls always seem to fail, long before the floor and chassis part company.
I don't wish to make fun of Erdener's experience, but there caravans used in many of these destruction derby's have much of the internal structure removed massively reducing the mass and the structural integrity, so it's hardly surprising the wall go .
However, you only have to Google " caravan road accidents" to see that body separation from chassis is diminishingly rare. But it's also only fair to point out the I could not find any accident images that can relate to Angora Karavans.
Consequently I have no clear reference as to the manufacturing design or methods this company uses, I cannot categorically state, there isn't a design or manufacturing fault in Erdener's caravan, but the pictorial evidence does clearly show a vary significant force has been applied to cause the body to separate witnessed by the chunks of floor apparently ripped out by the fixings, and the degree of bending at the fixing points especially on the chassis cross members. There is no detail view of the actual fixings used, but the degree of damage to the floor where the fixings apparently were ripped out suggests they were of a substantive size, and based on my own knowledge probably proportionate in size and number to the task of securing the body to the chassis for all reasonable towing conditions.
Googling picture evidence of caravans following blowouts, none show same this degree of destruction, so I can understand Erdener's thought that it's possibly a faulty caravan, but to me it looks as though something else is more likely to have occured concurrently, which might have damaged the caravan and caused the blowout, thus the blowout, was a symptom rather than the cause of the event.
Consider if the caravan was driven over a kerb or a large piece of debris or a pothole at high speed, the would possibly provide the jolt to move the body and simultaneously blow the tyre.
Also we don't know what speed was involved, the faster the outfit was travelling, the greater the kinetic energy would be involved in any sort of collision.
Without all the evidence, we can only speculate whether there is any realistic case against the manufacturer, but based on what we have been given, I have servers reservations, and that raises reasonable doubts about the chances of a successful case against the manufacturer.