The 918 Spyder and 991.1 Turbo S are iconic cars, but they have some serious company now. Here are the 10 quickest Porsches to ever hit the road. Porsche didn't rise to glory through flashy magazine performance figures. Instead, the success stemmed from perfecting its ideas over 20, 30, or 60 years until they were just right. That's why the Porsche 911 is still considered by many to be the bes... [15782 chars]