What scale is this model?

[misterNNL]

I have two Product Miniatures Co. '59(?) promos of an International Harvester Metro delivery van, One has a friction motor frame while the other has a glued-in plastic frame with a rear axle and third member. They are probably made from Cyoclac material which Always Warps.Anyway both were damaged when I got them. The friction one has nasty side panel warpage on both sides. The other is straight...but has a missing rear cargo door , a missing windshield divider pillar and the driver's side of the body is missing the lower 1/2" of "sheet metal" between the wheel wells. I am building this one into a street truck. I have replaced all the missing pieces with new scratch built ones so it's salvageable.

I am wondering what scale these are. I am comparing the PMC bodies to a Flintstone # 270 IH Metro van kit in 1/25th scale. The body on the PMC piece is 6.34" long nose to tail less bumpers. The Excellent Flintstone kit body is 7.8" long less bumpers. On a 1/25th scale ruler the JF piece measurers out to 16',3". It literally will set completely over the PMC body. It has me wondering what scale the PMC unit is. My math skills are non-existent (barely passed high school gen math) so I'm hoping some one can figure this out for me. What scale is a 6.34 body that represents a truck that is 16'3" in 1:1 ? 

[Dave G.]

It's a rough 1/32 scale. 16ft3" divided by 32 is 6-3/32" so pretty close.

[ZTony8]

Sixteen feet= 192 inches, and the real van is 195 inches long. Divide that by the model body dimension of 6.75 inches and you get 28.88 inches of real van per inch of model so it's just a touch bigger than 1/29th scale.