How Porsche's Patented Six Stroke Compares To Current Four Stroke Engines
Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...
MotorTrend on MSN4mon
Porsche's Six-Stroke Engine Could Kill Four-Stroke Designs
The German automaker sees your four-stroke engine and raises you... two more strokes. Ready for some math? Porsche just ...