@Cuddle Pot It's a custom built hover bike with light refractors, near silent engine and a prototype heat sink onboard, allowing it to run completely undetected to all but the most sophisticated earth monitoring systems. (Or if a lot of people start looking in its direction. Keeping up with that many eyes on it can make the refractors 'artifact'.) The color changes depending on where its at. But usually it's a pale gray and looks similar to a modern crotch rocket without the wheels.