To save weight, the 718 Spyder RS comes with a manually-operated soft top that has two parts—a sunshield and a weather protector. Porsche says both are removable and can be stowed in the car ...

and additional carbon fiber parts including the roof, side mirrors, and rear wing. The result is a car that weighs about 88 pounds less than a standard 918 Spyder. Maintenance records show that ...