Electric-car sales fall in April

[Turbineguy]

3. Doing some math:

Plugging in your all-electric car you get the equivalent of 42,650 BTU for $1 (at $0.08/KW)

From gasoline at $4.00 per gallon you get 31,000 BTU for $1. But your powerplant is only about 33% efficient. That's 10,030 net BTU per Dollar

So you are paying about 4 times as much for energy costs to run your gasoline powered car.

Diesel fuel costs more but has a higher energy content. Diesel contains 30,220 BTU for $1 (at $4.60 per gallon). Diesel engines are more efficient as well. The efficiency is about 40%. That amounts to 12090 net BTU per Dollar. This gives diesel about a 20% overall cost advantage over gasoline.

These figures disregard the differences in driving techniques between people.