Porsche has just released this teaser video of whatever it is they plan to unveil in Detroit and it sure looks like a 918 race car to us. We see slick tires, a rear window assumably attached to a fixed roof, a giant rear wing and the 918's unique side exit exhaust. Porsche also went through the trouble to ship a 917 to the Detroit hotel where they're hosting journalists they've invited to the show. Is this the beginnings of a new Porsche assault on Le Mans? We'll find out tomorrow.

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