Elon Musk Explains Why Window Broke On The Cybertruck

No matter if you're a Tesla fan or not, there's no arguing that the reveal event for the all-newCybertruckcould have gone better. Tesla'spredicted specs for the truck are undeniably great- a $39,900 starting price, a 500-mile max range, and a 0-60 mph time of under three seconds on the fastest model. During the reveal, Tesla CEO Elon Musk wanted to show off one of the Cybertruck's other unique features - supposedly "bulletproof" windows that the company calls 'Armor Glass.'

Musk invited a Tesla employee on stage to throw a metal ball at the Cybertruck's windows, showing their durability. The metal ball was supposed to bounce right off the window but in a stunning turn of events, it created a huge crack. He then threw the ball at the rear window and just like the front glass, it cracked. Musk was clearly unhappy with the result of the demonstration so the CEO took to Twitter to explain why the window didn't stand up to the ball.

Twitter user Rod Adib said, "I know the real reason behind the window crack. It's ok Elon, But maybe you should've threw (sic) the ball of (sic) the window before you decided to hit the door with a sledgehammer." Musk responded to Adib's comment to confirm this theory saying, "Yup. Sledgehammer impact on door cracked base of glass, which is why steel ball didn't bounce off. Should have done steel ball on window, *then* sledgehammer the door. Next time …"

This seems like a reasonable explanation for why the ball didn't bounce off the window but there's just one issue - why didn't it bounce off the rear window? Before throwing the ball, Tesla demonstrated the toughness of the stainless steel door by hitting it with a sledgehammer, which supposedly broke the base of the front window. But the rear door wasn't hit with a hammer, so why did the window crack?