There is so much engineering and math fail here. I'm not even sure where to start
Regarding C02 emissions, there are a variety of sources for C02 for each car driven. You two are missing one of the main comparison sources for hybrid vs non-hybrid vehicles, that being C02 produced during the production process for the vehicle itself. This is a non-insignificant percentage and one of the primary reasons hybrid vehicles do not blow away their conventional counterparts in terms of carbon footprint. This article
here has some interesting numbers. Google and you can find more on this topic.
Second, looking at energy efficiency, you guys are looking at such a small portion of what you'd need to do to fully actually compare things. For an electric car, there are a lot of losses downstream - the powerplant (coal is about 30-40% efficiency btw, quick Google shows this), transmission, storage in batteries (if you've used rechargeable batteries before you know they heat up), and overall engine/system efficiency. A gasoline car has similar losses in the refinement process, not to mention the transportation losses in trucks/etc. You can't pick and choose which elements of efficiency you look at and ignore the bigger picture.
dime21, with all due respect, you do not understand how thermodynamic efficiency works. Emissions do not waste energy and lower efficiency unless they carry away energy to be lost. In an engine, the overwhelming majority of losses comes as heat. A car has losses overall from both heat and friction. Probably other sources too such as sound and deformation but I doubt these are on the order of friction/heat. Oh, and go grab a tailpipe on a car after it's been running sometime if you don't think heat leaves through it.
Fourthly, power plants, conventional cars, AND solar cars continue to improve in terms of emissions, efficiency, and c02 footprint. Not only due to government restrictions and regulations but the simple fact that you make more money by increasing efficiency (especially in a power plant). A 1% increase in efficiency in a power plant can make you a TON more money with nearly the same emissions and c02 output, barring some change that increases these obviously.
Lastly, regarding pricing, at least in the USA, people only are going to buy electric or hybrid cars if they are affordable. Companies are not going to make them if the only price they can sell them at is far below their cost. This is simply how business works - you cannot sell products for less than you make them at and remain a viable company. Why do you think the government is subsidizing the Volt nearly 20%?
Overall though, the easiest way to be efficient here is to drive your current vehicle into the ground before replacing it. Getting a new car every 3 years - even if it is more efficient than your last one - is not more environment friendly overall.