Porsche have launched the 918 Spyder for 2014, a hybrid vehicle that is powered by a four point six liter, eight cylinder engine. Supplemented by two electric, lithium-ion motors, this car includes several improvements from previous models including a top-mounted exhaust, magnesium wheels, and vents on the front quarter panels. This fuel-efficient vehicle can hit sixty miles per hour in two point eight seconds and can reach top speeds of two hundred miles per hour.