Porsche is a great company, and I have a lot of confidence in Porsche products... BUT... I wouldn't expect them to make a fuel that was cost effective and good for the environment... Keep in mind, oil companies have R&D teams to do that and those R&D teams haven't figured it out... And let's say Porsche makes a synthetic fuel that's good for the environment, cheap to produce, and backwards compatible with all gasoline cars... Then what? Will Royal Dutch Shell allow Porsche to sell it out of their petrol stations?