Derek Landy said this quote

The Engineer smiled (internally, for of course it had no mouth). It was feeling good. It was feeling optimistic. Moving at its current speed, it would arrive back in Ireland in plenty of time to shut everything down before a series of overloads and power loops inevitably led to a sequence of events which would, in turn, eventually lead to the probable destruction of the world. The Engineer wasn't worried.And then the truck hit it.