1) I would agree that the cheapest car to operate today is still a barebones Honda Civic or Toyota Corolla or Mazda 3 or similar Hyundai, Kai, Subaru etc. These are very mature products and extremely reliable so maintenance costs are minimal and if something does go wrong there are so many of them out there that parts and repair costs are cheap. If a ICE powered version of one of these cars gets 35mpg (realistic) on the highway and 27-28 in town, then depending on the type of driving you do your average MPG will be slightly north of 30. If you drive 15K per year you'll use 500 gallons of gas, roughly $1300 at today's prices. A hybrid will cost at least a few thousand more to buy and will get 45mpg in the city and on the highway. Maybe a touch more. That same 15K miles will use 300 gallons of gas costing about $800. Fuel savings of about $500/yr will take 5-10 years to recover. Not a particularly good ROI. Of course things change when gas costs $4/gallon. Also, while the hybrids are reliable, they add an extra high cost maintenance concern as local garages cannot work on the hybrid system so you are stuck with dealer service if such service is needed. 2) Use of AC and heat affects true electric car range significantly. Not such a problem for the hybrids. 3) There is very little good science that "disputes" global warming "fears". There is still much to learn about global warming but that is very different from "disputing" it. When 97% of relevant scientists agree on something there is little reason for non scientists to run around "doubting" their conclusions. There are however a lot of politically motivated pseudoscientists and just plain old knownothings who like to dispute science they are not at all prepared to understand.