Super crazy and fun idea by Domino’s Pizza in The Netherlands: a human engine sound installed on Domino’s delivery electrical scooters. Every time the vehicle accelerates a catchy promotional tune is played. According to Domino’s the gimmick should make scooters more recognizable to bikers and therefore safer while driving on the Amsterdam’s bicycles’ lanes. More likely, it’s just a smart invention to generate some buzz. Whatever the case, it’s really nice.