Tesla Model S
As one would explect, Tesla Motors occupies most of the top spots for electric vehicles as sorted by range rank. Yet despite the high price tags on the Teslas, the size of battery packs on board still make the Model S the "cheapest per mile" for range.
The Model S 75 stands at $299 per mile of EPA range, ahead of the 90D, 75D and 60. Only the Chevrolet Spark EV manages to thwart an all-Tesla Top 5 (see chart below).
However, when deducting the $7,500 federal tax credit, the Chevrolet Spark EV easily takes the #1 spot at $230/mile of EPA range. In fact, by allowing for the federal credit, a myriad of "city EVs" pull even (or a little better) than the least expensive Tesla.
We must also notice that today's 30 kWh Nissan LEAF is not that far away from Tesla at $328/mile (pre-credit), a number that will improve in the short term as new battery options are made available. Expect to see this list change significantly over the next 12 months, as both the upgraded LEAF and the upcoming Bolt EV will both move to the top.