Porsche takes Panamera to the Next Level

550-horsepower sports sedan Later this month, at the New York Auto Show, Porsche plans to pull the wraps off the pinnacle of performance sedans, the new Panamera Turbo S. Powered by the latest iteration of the Porsche 4.8-liter V-8, the twin turbo engine the new S version is rated at 550-hp and 553 lb-ft. of…

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