I'd love a hybrid car if I had the money. They're more fuel efficient, have longer ranges, and are generally cheaper to operate. Also, the electrical components can be charged at home for super-cheap, but you can rely on the gas tank for long trips. More expensive to buy, which is why most cars out there are pure gasoline operated.
Discovery News is now reporting that construction vehicles are increasingly hybrids, both for their efficiency, as gas prices soar, but also for their quietness, as more quiet vehicles means fewer noise complaints on construction sites.
I confess I never thought of making hybrid bulldozers, earthmovers, mechanical shovels, or dump trucks, but that it's making such a big difference is awesome news indeed.