My 2003 Prius averages 40m/Gallon -> burning 1G of Gasoline emits 19.4 lbs of CO2
My 2011 LEAF averages 3.8 m/kwh -> 40m require 10.5 kwh -> 5.51 lbs of CO2
These calculations leave aside the CO2 emitted in the production/transportation and refinement of Gasoline.
Also, my LEAF is actually powered 100% using the electricity produced by my PV, so my CO2 is actually zero.
(CO2 data from http://www.pge.com/about/environment/calculator/assumptions.shtml)
My 2011 LEAF averages 3.8 m/kwh -> 40m require 10.5 kwh -> 5.51 lbs of CO2
These calculations leave aside the CO2 emitted in the production/transportation and refinement of Gasoline.
Also, my LEAF is actually powered 100% using the electricity produced by my PV, so my CO2 is actually zero.
(CO2 data from http://www.pge.com/about/environment/calculator/assumptions.shtml)