Poorly packed roof boxes dangerous, insurance firm finds

Following recent crash tests conducted by Allianz Munich, it was demonstrated that poorly packed roof boxes can explode upon impact and spew their contents with the force of several tonnes. In effect, it becomes a cannon.
The video, which Allianz has released, shows how quickly a poorly loaded roof box can compound the potential injuries of a car crash. The test was conducted using a standard 380-litre roof box packed with skis and associated equipment.