The 3-millimeter-thick doors weigh 60 pounds each.
One of the Tesla Cybertruck’s most striking features is its stainless steel body. The exterior does more than crib the DeLorean DMC-12, too. It provides real durability that Tesla CEO Elon Musk was willing to demonstrate during the truck’s debut last night. A sledgehammer hit to the 3-millimeter-thick stainless-steel door left no dent. But don’t ask about the side windows, though. Motor Trend reports that the Cybertruck will use the same 301 stainless steel Tesla’s sister-company SpaceX will use for its Starship spacecraft.
Musk claimed the body is bulletproof, capable of withstanding a 9mm round. That’s a bold claim for any company to make, but one not yet supported with proper ballistics certification, as the Motor Trend story notes. Proper certification requires passing a rigorous set of tests designed to mimic real-world firearm situations.
According to publication, Tesla considered increasing the thickness to 4 millimeters but decided against it. The 3-mm-thick door panels already weigh 60 pounds each. Adding one millimeter of thickness would add 20 pounds of weight per door, though it would have increased the truck’s ballistics protection.