Laurens, I was at Compton Abbas today in my 4/4 and both chassis were cracked in roughly the same place. For a British right hand drive car this was on the left side upper main tube, just to the rear of the suspension wishbone mounting. I hope this will give an idea of where to look. (I didn't take any photos of the fault myself- it seemed a bit too much like 'rubbing salt into the wound' {I hope you can understand this English saying}, but I know someone did get some pics, perhaps they'll get posted later). Gerry.