In 1941, it appears, Hitler ordered 2 or more 770-K Mercedes-Benz cars equipped for his personal use. To the 20-long chassis were added 2,000 lbs. of armor plate and bullet-proof glass which, with 500 lbs. of fuel, oil, and radiator fluid, came to nearly 10,000 lbs. of weight per car. The armor plate is 12 thick while the glass is 1 14 and is said to have been tested by Hitler himself when he shot a Luger at it. One of the cars still bears a nicked side window.