A new, eight-speed Porsche Doppelkupplung (PDK) automatic transmission increases engine efficiency and power on the road. (Source: Porsche)   

How to Get the Most Out of Your New Porsche Convertible

(Bloomberg) -- More than a mere model-year update, there are enough changes on the 2020 Porsche 911 Cabriolet to cause an Instagram comment war. The Porsche 992 (as the brand calls it internally) i...