I quite agree Parksy. Over the years I've been to a number of crashes where caravans have overturned etc, etc, and in every case, the car has remained attached. The last one I went to was a fatal (caravan and towcar incidental and got caught up in someone else's stuopid driving), and whilst the twin axle caravan was destroyed (body ripped off), the chassis and floor were strong enough to lift the rear of a LWB Mitsubishi Pajero off the ground. I have photos to prove it for any disbelievers, although for obvious reasons will not post them on here!