Looks kind've like when the dogs get stuck together...quick, grab the hose!.
Reminds me of something else too..
Does anyone remember in the mid to late 60's when the early days of the hippy van craze was in swing, the vans w/ the top half of VW Bugs, Austin Minis and other assorted smaller cars were welded to the tops...kind've a boneyard design high-roof thing?.
In the 60's, I remember seeing lots of them on the hiways...Dog, you got any pictures of these!?.

~ Pete