Have you ever wondered what all of those extra SUVs are in Presidential and VIP motorcades? The ones with blackened windows, and nobody ever gets in or out?
Wonder no more. They have a 6-barrelled 7.62 mm minigun which can fire over 3000 rounds per minute. The wipers need to be run to remove spent casings when firing forward. The vehicle is armor-plated. This video is from Dillon Aero, who makes this all happen: