The U.S. luxury segment is heating up with Cadillac revamping its line-up and aiming to be No.1 premium car brand in the U.S. within three years.

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And it works the other way too: Our BMW worker going off into the woods to cut firewood for the winter has less environmental impact (given the size of German forests at least) than our GM one staying on the production line and using the money to buy heating oil for the winter.

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The expansion incorporates a fully-automated assembly line for air handling units and four production lines for ductless air-conditioning and heating systems.

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