The official EPA fuel economy numbers are in for the 2015 Porsche 918 Spyder and not unexpectedly it scores quite a bit lower than other plug-in hybrids like the Volt, ELR, Accord and Fusion.
Of course it's not competing with those models but the Ferrari LaFerrari, McLaren P1 and to a lesser degree the BMW i8 have not been rated yet so the comparison set is not perfect. The EPA predicts the 918 Spyder will be good for 12 miles on electricity and will consume it at a rate of 67 MPGe. Once the juice runs out the 918 is good for 20 MPG in the city and 24 on the highway as a hybrid.
Are you impressed with the 918 Spyder's fuel economy or is it irrelevant given its pricing and performance aspirations.