So I was looking around on electricitymap.org and the electricity grid here in Sweden was releasing around 36gCO2/kWh produced.
And I'm getting about 9km/kWh as far as I can tell. (The instrumentation is a bit lacking) That means only 4gCO2/km or 1364MPG!
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__________________
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)