The NSX's city # is so good due to hybridization. The HWY number isn't much different.The Ford gt350 gets 14 mpg city and 21 mpg highway. The GT3 gets 15 city and 20 highway. The NSX gets 21 city and 22 highway. Now I did not purchase the NSX based upon its mpg. Having said that neither Porsche nor Ford can come close without significant investment and technology. You stated that the both the Ford and Porsche are faster on the track. What tract and what were the times?
On multiple different tracks.