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high end luxory cars have that, also may cars in extreme cold climates do. ie: russia, siberia, etc. its insulation, not defrosting. the layer of air sandwiched between the glass provides for a cheap and very effective insulation. helps keep the car cooler when hot, and warmer when cold. same reason you have double paned windows at home. anderson, pella and the like.
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yes, my hog is bigger then yours
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