[Fog! Fog everywhere! Spooky fog! Fog of the future! Here’s then-Porsche CEO Matthias Müller riding shotgun with Walter Röhrl as the Porsche 918 arrived at the 2013 Frankfurt Auto Show. Photo credit: AP Images]

[An early Porsche 918 test mule. It might not look much like the hypercar you know and lust over, but we all have to start somewhere, right? Photo Credit: Porsche]