The stacked windows, with smaller ones below, is odd. Typical US passenger vans form Ford, GM, Mercedes and others:
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Possibly some sort of shuttle bus:
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But these usually aren't for long runs down the freeway.
Fire crew and/or inmate crew vans:
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Amtrak Trains has some stacked windows, but still not what I'm seeing in the video:
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EDIT: Possibly an RV. Some have similar looking windows, but still not the odd off set like in the video:
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Not sure. There's always some custom something out there where one needs to know the exact make or custom shop.