You are correct. When one reaches the horsepower used in electric cars, the efficiency climbs significantly higher than the 90% I estimated. Thank you.
http://www.engineeringtoolbox.com/electrical-motor-efficiency-d_655.html
[TABLE="class: medium"]
[TD]Power
(hp)[/TD]
[TD]Minimum Nominal Efficiency[SUP]1)[/SUP]
[TD]1 - 4[/TD]
[TD]78.8[/TD]
[TD]5 - 9[/TD]
[TD]84.0[/TD]
[TD]10 - 19[/TD]
[TD]85.5[/TD]
[TD]20 - 49[/TD]
[TD]88.5[/TD]
[TD]50 - 99[/TD]
[TD]90.2[/TD]
[TD]100 - 124[/TD]
[TD]91.7[/TD]
[TD]> 125[/TD]
[TD]92.4[/TD]
[/TABLE]
Next let's look at battery manufacturing vs ICE manufacturing.
Lead- acid battery, injection molded plastic, recycled lead. Lithium Ion, surface mined lithium, refined and rolled into thin sheets.
Iron-aluminum engine blocks and associated components (the vast majority of which simply do not exist on electric cars) Pit mining, smelting, metal casting, etc. with up to at most 20% recycled metals.
Sorry, but manufacturing internal combustion engines and their related support components (radiators, fuel tanks, ignition systems, exhaust systems, fuel distribution systems) is simply far more expensive, complicated and polluting.
Lines losses country wide total 7%, and coal is used to produce less than 45% of our electricity and rapidly dropping.
Furthermore, Coal production of electricity approaches theoretical maximum efficiency and is a domestic fuel source, greatly aiding national security.
The bottom line though is that an electric car uses less energy per mile period.