I've done a few searches but haven't found anything on this yet. I'm wondering why, if electric motors are capable of generating a lot of power, why haven't we seen them in trucks/SUV's or heavy duty applications? Even if it's just a hybrid, with the power generation needed in trucks and 4x4 vehicles, wouldn't hybrids be an obvious choice? Is it: 1) There are mechanical/performance issues w/ electric motors? 2) Or is it more of a marketing thing, in that the typical truck/SUV owner/gearhead isn't viewed as being as open to the hybrid tech? (Yes, I know that's a stereotype. No offense intended.) 3) Maybe it's just easier to test out new technology in lower wear and tear applications such as a passenger car. Thanks.