After several years of development and teasers, Porsche officially unveiled the long-awaited production version of the 2015 918 Spyder at the 2013 Frankfurt Motor Show. We have written about the 918 Spyder's eye-popping specs previously, but a few of the numbers are worth repeating: 887 total horsepower from a midmounted 4.6-liter V-8 and three electric motors. Zero-to-60 mph is accomplished in 2.8 seconds. Top speed? Upward of 211 mph. Even more impressive is a claimed recent lap of Germany's famed Nurburgring track in a scant 6 minutes and 57 seconds, a new world record (for now).