You will be ok. They will not take physical form. They won’t need to. They will be driving your car off a bridge or making the aeroplane window next to you shatter. They WILL find a way to get revengeÂ
They contract the coaches out to local coach companies who use their own vehicles, so it depends on what those operators have in their fleet. You might be lucky but I wouldn't bank on it. The coach I took from the O2 last year didn't have power points. You'd probably have more luck on a National Express coach, but even they contract out sometimes.