Your link had no original information unless I missed one. But, tracking down the links of links I got to this:
(160,000 km = 100,000 miles)
Comparative Environmental Life Cycle Assessment of Conventional and Electric Vehicles - Hawkins - 2012 - Journal of Industrial Ecology - Wiley Online Library
The analysis by the National Research Counsel had no choice but to assume battery technology would not improve dramatically from 2005 to 2035, which is a highly unlikely occurrence given how far we've come in the 8 years since the data for the study was assembled. They counted 20% of the manufacture "cost" for the battery, a number which I'm sure has already changed with lithium-ion battery usage ala Tesla. Even with that huge inclusion, the results they got between gas and electric were virtually the same. Also, as cars try to get more fuel efficient, they will be forced to use the same light-weight composites as electrics use now. This will increase their cost of manufacture to much the same as electrics as far as the chassis and body are concerned.
Hidden Costs of Energy: Unpriced Consequences of Energy Production and Use
Assuming 35 MPH, which you'll never get all the time, and gasoline prices holding at $3.50/gal, the battery for the electric would be the same price as all the gasoline you would use. Factor in the actual price of gas and the actual MPH of gas cars and the price of electricity you'll get nearly the same dollar amount for both gas and electric for 100k miles.
Next, you'll add maintenance for the gas car over 100k miles. Electrics have no transmission to maintain, no oil changes, no plugs, no EFI or fuel pump, or anything else mechanical that will go wrong in the first 100k miles (and probably a hell of a lot more miles than that since electric motors are extremely reliable). Compared to common IC drive-trains, electrics have no maintenance to speak of.