One only has to take a look at the fuel prices these days to realize we need more fuel efficient cars in our own households. Indeed, I have one of those huge motor coaches and generally I use it so very little as opposed to previous years, strictly due to my adverse view on paying more at the pump. I guess in this case like many Americans I am voting with my dollar. High gasoline and diesel prices take a huge toll on our economy, so what’s the solution? Well, if you think hybrid vehicles is it, you’d be wrong, as those vehicles cost so much more due to the fact that they have dual systems, plus they are more complicated and often maintenance challenges too. Lighter materials seem to be one of the most obvious answers, lighter weight means less fuel to motivate down the highway. However, there are challenges too with all these new materials. For instance, many of the carbon composites give off toxic gases when they catch on fire, that’s a scary thought – of course there are other challenges as well. If the cars and trucks are too light, they will get blown around on …