Here's another snippet.
The FiST is still more efficient LoL
The experiment found that when charged this way, a BMW i3 was the most fuel-efficient of the electric cars, consuming 4.39 liters of fuel for every 100 kilometers of range added, equivalent to about 54 mpg. One Tesla model consumed around 7 liters of diesel fuel per 100 km of range, equivalent to about 34 mpg.
Edwardsā experiment found that, in most instances, using the generator to charge a car consumed less fuel than a similarly sized diesel car would to travel the same distance. A diesel-fueled VW Touareg SUV, for example, used 7.2 liters of fuel per 100 km.