The Tesla Model S is not the most efficient of cars on the market. What miles/Kwh should should Tesla aim for the Model III? Musk has previously claimed that the Model III target CD is .20. The Model S currently gets around 3.5Miles/Kwh and is one of the most inefficient ev's on the market do to it's size. Also Tesla currently rates efficiency by WH/miles. However i think Kw/mile is a much better way to compare energy consumption and overall efficiency in ev's. For example to go 219.7 miles on my volt I used 45.4KWh. So i got 4.84miles/Kwh, knowing that i know that to go 2,000 miles on my daily commute. Will take 413 Kwh and will cost me @ .16/Kwh 66 dollars. So to me miles/Wh makes no sense to me, since it is harder to determine cost and efficiency of the Ev. What are your guys opinions on the subjects.