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Streamlining lowers drag and turbulence around the airfoil. Drag and turbulence take away from an object's efficient passing through a medium. That inefficiency results in higher fuel consumption as the greater drag is overcome, all other things being equal. It's no accident that race cars are built like they are.

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13y ago
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13y ago

A bulkier car has to exert more energy against the wind than a streamlined car does.

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Q: Why a more streamlined car generally will have better fuel economy than a bulkier car that has the same mass?
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