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Nathan @ Feb 22nd 2008 9:32PM
SPW you are simply wrong on all fronts.
Series hybrids offer huge improvements in gas mileage because they generate energy at peak efficiency. And yes that does mean a car like the Volt, however the big stumbling block for the Volt is the battery pack being able to store enough energy to go 40 miles without any gas; if you were to skip the battery all together and just run 4 in hub electric motors off of a constant generated stream of electricity you could achieve better than current MPG figures.
Trains have been doing this for year and they don't have massive battery packs, the generate electricity on board with diesel generators as needed.
Biodiesel has been shown to return more energy than it takes to make and has the added bonus of being carbon neutral AND can be made from current waste products to supplement regular diesel refined from crude. And it is not produced the same way as ethanol.
Try doing a little digging before you start proclaiming you are the know all of car and green tech.