The Model S has an EPA rating of ~237.5 Wh/km. I also see that the Model S has a volumetric energy density of ~700Wh/l. Cancelling, I get ~0.34 mm^2. Another

The Model S has an EPA rating of ~237.5 Wh/km. I also see that the Model S has a volumetric energy density of ~700Wh/l. Cancelling, I get ~0.34 mm^2. Another question would be the mass per unit length. At 250 Wh/kg, that works out to ~0.95g/m. For comparison, the 30mpg car works out to ~0.057g/m.