[aerohead]

Here is some of the work-up on Gary's trailer.
I'm not sure about the order they go up with,so I'll comment on them after they're up.
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*1st photo,looking 'downwind',trailer hiding behind car
*2nd photo,2nd-gen Prius with aerodynamic 'insurance policy' to get best 'onset' flow rearward onto gap-fillers/trailer
*3rd photo,Harbor Freight Tools 48"X 40.5" trailer with 12" wheels/tires
*4th photo,trailer body,pushed to 'Template' profile
*5th photo,Trailer and 'integrator' which fills void between car and trailer nose and contacts gap-filler mechanism for panel articulation
*6th photo,2nd-gen Prius image,by Toyota,with side elevation shown in 'true-length' used in lieu of an accurate 3rd-gen side image
NOTE:
* 'Template' position was altered to agree with 3rd-gen Prius 0% roof camber position,while ballasted with 300-pounds dead load ( 136.3 kg )