Part of this is the fundamental design change.

We moved the mass to the outside.

We created an exoskeleton.

So normally the way that a truck is designed, you have a body on frame, you have a bed on frame, and the body and the bed don't do anything useful.

They're carried like cargo, like a sack of potatoes.

It was the way that aircraft used to be designed, when they had biplanes, basically.

The key to creating an effective monoplane was a stressed skin design.

You move the stress to the outside skin.

It allows you to do things that you can't do with a body on frame.

So we're able to make the skin out of thick, ultra-hard stainless steel.

It's really hard.

I'm going to show you just how hard.

So Franz has a sledgehammer.

Yeah, don't hold back.

Okay.

Yeah.

It's a regular truck door.

You want me to do this?

Do it.

Yeah.

Yeah.

Hit it a couple of times.

You want to hit it again?

All right.

Yeah.

Nice.

Now hit the Cybertruck.

Same thing.

Hit it harder.

Yeah.

Really wind up.

Nail that.

Yeah.

It's pretty strong.

Very strong.

So if you think about a truck, you want a truck that's tough.

You want a truck that's really tough, not fake tough.

You want a truck that can take a sledgehammer too.

A truck that won't shoot it.

Let's shoot it.

OSHA.

I mean, come on.

So that's a 9mm bullet shot at the door.

Shoot it.

We're in California, unfortunately.

But the 9mm, it is literally bulletproof to a 9mm handgun.

That's how strong the skin is.

So it's ultra-hard, cold-rolled stainless steel alloy that we've developed.

We're going to be using the same alloy in the Starship Rocket and in the Yeah, you're welcome.

So on the right, that's like normal truck doors might as well be made of tissue paper.

That looks like a paintball.

Very different.

So, you know, when you say something's built tough, that's what we mean.