Detroit Auto Show 2013
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Infiniti Q50 unveiled at the 2013 Detoit Auto Show.

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Infiniti Q50

This car's first impression is anchored by the smooth yet dynamic character line arising from its "double arch" grille, according to Infiniti's press materials. "It energetically flows through the body side like a wave and merges with the rear end, creating a highly fluid and intriguing profile."

At launch in North America, two advanced power trains will be available, followed by additional engine options in other global markets later in the year, according to the company. The Q50's 3.7-liter aluminum-alloy DOHC 24-valve V6 is rated at 328 horsepower and 269 lb-ft of torque.

Jonathan K. Li | CNBC