Surely what needs to not be forgotten is that it is still not a 'Zero Carbon Footprint' approach as unless you are charging it off wind or solar power you still have to mains charge it at a cost to the atmosphere and what does it take to make, and break down the batterys and technology once it has run it's course. Whilst exposing ourselves to battery technology, how long will it be until we evolve into the aliens we believe have been visiting us? D has already started.

First R/C I have seen move like a spacecraft.