3 years w my Chevy Volt

43189 miles total 167 mpg
80% electric (wind powered*) 34551 miles > $950
20% gas 7000 mi. x $3.25 = $650, 1637 x $2.50 =$116,> $766
total fuel cost, gas and electric – $1,716
total fuel cost, if all gas – $3,701
CO2 avoided 27,705 pounds
*through utility WindSource program