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Porsche 918 RSR - 2011 Detroit Auto Show
By KBB.com Editors
Summary: Porsche promised a spectacular reveal in Detroit and delivered nothing less with the world debut of its stunning Porsche 918 RSR Concept. A coupe-bodied "motor sports version" of the 918 Spyder Concept unveiled last March in Geneva, the 918 RSR variant marries its closed-form body configuration with hybrid elements from the 911 GT3 R Hybrid with truly phenomenal results.