There's a lot of news out there these days about autonomous cars.
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Porsche and Audi take sibling rivalry to a new level in the latest episode of Head 2 Head.
We haven't gotten this excited for a rear-view mirror since Pearl Jam's greatest hits, but Audi has managed to advance the art of looking behind us and promptly ignoring what's there.
Motor Trend's Justin Bell takes the 2013 Audi S8 to the track to see how it stacks up against its competitors.