The Porsche Carrera GT just turned 20—here's what makes it one of our favorites

It was at the 2000 Paris International Motor Show that Porsche surprised the automotive world with the unveiling of a V-10-powered supercar concept called the Carrera GT.

The concept was never intended for production but Porsche already had a V-10 engine on hand due to an aborted Le Mans program, and was soon flush with cash from the launch of the Cayenne in 2002. The green light was given and the first examples started rolling off the line at the then-new plant in Leipzig, Germany, in 2003.