Unveiled at the 2010 Geneva Motor Show, the Porsche 918 Spyder is a hybrid concept. With four different driving modes, the car is able to switch between race car, sports car, hybrid and electric wit the simple touch of a button. All this, with the same sexy styling for which Porsche is known. The company has yet to announce whether the 918 Spyder will ever be seen on the roads, but its more exciting elements will likely be featured in production cars in the future. In this video, profiles one of the most exciting concept cars to come along in a while, the Porsche 918 Spyder.