An old classic Range Rover of the 1970's towing a caravan. Looks like a "H" registration making this a 1969 vehicle. An old Rover P6 is lurking in the background.
A Rover P5 an a single axle caravan from the same period. Apparently a family were compelled to spend the last five days of their holiday in their parked caravan. The clutch on their car burned out on the Kingston bypass. Here they are pictured having a picnic on the side of the road. Photograph taken in 1972.