Automakers have launched many series of engines meant to offer greater performance or efficiency than their predecessors. Chevy's Vortec line, which includes General Motors' vortex technology, boosted ...

WASHINGTON — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather later ...

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The massive storm system was set to drop a mix of freezing rain and heavy snow starting Friday evening on its days-long march across the continental US. The storm could bring "catastrophic ice ...