As a motorcyclist, I can assure you that each and every motorcycle in the UK comes with its own built-in cloak of invisibility which makes it and its rider totally invisible to fifty percent of other road users.
its bright red, it weighs quarter of a ton, the headlight is on, the rider has a dayglo yellow jacket on, its got an engine bigger than a compact car, a hundred more horsepower than a volkswagen van, and at 106db (road legal exhaust) even the blind ought to have a fighting chance, but unless it has the word "police" on the front, cars will pull out of side streets in your path, cut you up at junctions, spreadeagle you over their bonnet or worse and then say "sorry mate, I didn't see you".