[dieselgate]

This is a cool data point but I personally wouldn't call 45 mpg "staggering" - it's definitely good but not unprecedented by any means, many TDIs or smaller gas engines can get that on the freeway. The research into synthetic gasoline fuels is inspiring but at a certain point seem impractical and too-little-too-late. There are already well established "alternative" fueling technologies that are very easily accessible and likely cheaper.

[RhysU]

I just did a long highway trip in an MX-5 and got about 38 mpg on the recommended 93-octane gasoline. I was not driving the vehicle to optimize for mileage. The article quotes the same. I mention it because it is an obtainable 38 mpg.

[dieselgate]

Driving long distances on the freeway typically is the best way to optimize for mileage though? at least seems you couldn’t have been going too fast ;) Must’ve been fun in the mx5

[RhysU]

Sadly, it was all dark and wet during the trip and I had just put on winter tires. Still, the ramps were fun.