would you agree to use an actually small car? a two-seater such as the Volkswagen 1-liter.
http://www.enerzine.com/1036/5349+volkswagen-1-liter-en-edition-limitee-des-2010+.html
such a "technology" is very old, it's simply a matter of building a low lying, thin and very lightweight car, it was used in economy post-WW2 microcars, and in pre-war sports and racing car.
someone in my midly remote family has an
Amilcar, from 1923 or 1924. he claims 6L/100km, or 39mpg with it, cruising between 70km/h and 80 km/h.
of course I believe that resulting savings have to be taxed. because you know, more car efficiency means more people driving the cars, longer, and faster.
fuel taxes play a part (well, with the hassle that price of cooking oil is indexed on them) but I can imagine an odometer tax as well. significant burdening tax if you drive over 10000km during a year for instance, increasing more after that. no tax below 3000km a year (or whatever the fair numbers). jail sentence if you fiddle with the odometer.
In my case alot of times a small car would require more gas mileage. Crusing around here i can get 20mpg in my torrent and house 5 6foot or taller people which is normal with my guys night out. If i got a smaller 2 seater we would suddenly need 3 cars to go the same distance so even with 3 vastly more efficent cars that got 50miles to the gallon it would still cost more and require more resources to maintain these cars and of course the cost to the enviorment for the intial production of the cars.
The only time i have less than 3 people in my car is too and from work. But i certianly can't afford two cars . In the summer i'm going back and forth from the shore every weekend with 5 people in my torrent along with towing a boat on some of those weekends and a roof rack full of clothes and a trunk full of fishing and crabbing pots and equipment.
I would certianly buy a volt like suv when it becomes avalible but i don't know when that will be. This car is almost paid off just another 8 months and i'm down paying it. I want to make the same car payment of $300 into an account once i'm done and start saving for the next car. However if gass doubles i wont be able to do that and thus in 10 years i when a volt like suv comes out i wont make the switch , i will continue using my torrent even as it becomes less efficent due to age .
My feelings are simple on the matter. We have done so much to damage the world that my way of life isn't going to push us over the edge esp since i'm making choices to limit my impact in other areas. The world can wait 10 years for me to buy a new suv because frankly my suv choices are limited in terms of more efficent gas usage most likely for the better part of those 10 years.
My gf is hoping to get another 2 years out of her 2 door car now and if she is able to she is going to pick up the volt if it drops under 30k after rebate. So the most likely route in the future when we move in is that she drives me to the train station and then drives to work and my torrent sits home until needed.
But i've done alot for the enivorment over the last 10 years. All my lights are now energy savers with a few tranistioning to led , i only have 2 lights that are not energy saver but they are barely used (a storage closet in the garage ) and they will be switched when they die.
I have moved to led monitors so that even though i have 3 now they use less power than the 2 previously did.
My parents tvs are now led tvs which are using less power than their old tvs (i measured at the wall)
We switched over to recharable batterys.
I shut my pc down when its not in use now.
We updated all the major appliances that were bought when i was 5 to brand new highly efficent enery star stuff
We just put in new central air with two zones instead of a single large one , both many times more effficent than the 30 year old one we had. Now when the downstairs is cold one of the units will shut off.
Heck i even have my led monitors on a power strip and shut them completely off when i leave the room , everything connected to my tv except the tivo and sling box are completely shut from the power source also.
I think i'm doing enough to help out that i can get a few more years on my car before the witch hunts begin.