File talk:Smart ED Monroney sticker WAS 2011 1126.jpg

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33.7kWh is one US Gallon of gas? They're being incredibly harsh on the electric car here, the equivalent mileage should be a lot higher.

I used to own a car with approx 33kW peak output. You drive for an hour flat out? You'd have covered about 90 miles, and used at LEAST 3 gallons (in fact, probably closer to 3 UK gallons than 3 US ones... but I'm updating slightly here, as I now drive a more powerful one, and at a flat 90mph it's more like 30MPG US than the old boxy, overworked, 4-speed car's 30MPG UK).

I know they're more efficient and all, but that's surely assuming that we're pulling 100% of the available energy out of that gallon of gas - and so the electric car's MPG equivalent tumbles to about a third of what it should be. A more fair comparison would be to assume the much more truthful situation that only 1/3rd of the chemical energy input to an ICE goes into moving the car forwards, with the rest lost to friction and other heat/drag, noise, and sub-optimal chemical reactions (IE the waste products still have some residual energy... they haven't reached the bottom of the reactivity series yet). Shall we say 11.2kWh? Or adjusting for larger, less efficient engines (the size and aerodynamics of the vehicle matter not) and smaller measures, 10kWh per USGal?

After all, driving that far on 1.3 gallons is still hella impressive (if it's a 13.2kWh pack)... never mind 0.4 or so... 193.63.174.11 (talk) 11:50, 21 April 2011 (UTC)[reply]