There are two electric cars on the market that have received a lot of attention in the media. One is GM's Chevy Volt and the other is the Tesla Model S. Extravagant claims have been made by both manufacturers to have us believe that these that these automobiles are practical and economical to drive. As we shall see, that is not really true when one takes into account all the factors which contribute to the total operating cost of each of these two vehicles. Chevy VoltThe manufacturer claims that "The Chevy Volt is the most fuel-efficient car with a gasoline...