Amazon has started rolling out delivery vans that make special SOUNDS when they're rolling around neighborhoods. It's because any electric vehicles that go under 18.6 miles-per-hour need to make noise to prevent accidents.
But, the Amazon trucks aren't playing "Farmer in the Dell" or "Pop Goes the Weasel" like ice cream trucks. A YouTube video of one of the new trucks shows they make a weird ALIEN-style sound.
Amazon is going to have at least 100,000 of these delivery vans on the roads within the next two years.