Comment Re:Practical? (Score 1) 331
You should look at greenercars.org. They not only look at upstream emissions but also the cost of drilling for oil, shipping it to you gas station, and also downstream pollution (shipping the junk car to China for recycling). Also CO2. Here are these cars scores out of 100:
Mitsubishi myEV 58
Toyota Prius C 56
Civic CNG 55
Leaf 55
The highest non-hybrid cars are the Scion IQ at 53 and the Toyota Yaris at 50. Probably they score that high because both are SULEVs and PZEVs.