It would have been more
environment friendly if they just used a Bosch CRDi VGT engine which far far more efficient than a petrol V8. 6L?? come on! a 2.5 or 3.0L CRDi VGT engine could easily do the trick of hauling that oversized ass. Unfortunately, diesel is not widely used in America. It seems, that country still prefers to pollute the planet while Europeans, Asians et al are trying to save the planet. Ironically, we see a lot of Hollywood movies portraying USA saving the planet from Aliens Asteroids and whatnot. hehehee.
Imagine the petrol (which is NOT energy efficient btw) needed for takeoff for something that big.
Hybrids aren't a good option either. Aside from being insanely expensive, you'd still be doing the rat race of finding where to dispose the power storage cells when you replace them. I bet, another american company would be put up to manage that. hehehe.