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Great Video DJ. In the second half, I'll bet your right on the 2 sides being engine areas. It you look at the roof, they have vents over those 2 sides and not the car area.
A very interesting video with lots of insights & ideas. As a side note, one of the first things I noticed after the G&W takeover was the yard in McKees Rocks was substantially cleaned up. Looked a lot better afterwards.