13 Porsche Concepts You Were Never Supposed to See Published on November 13, 2020 in Classic Cars by Julien Amado Photo: Porsche Porsche recently invited The Car Guide to take a virtual tour of its design studio. We got to see some unique concepts that have never been shown to the public—until now. Here are 13 of these wild creations!Also: Singer’s Porsche 911 All-Terrain Competition Study is Ready for BajaAlso: Porsche Vision Gran Turismo is a Real Concept for the Virtual World