Tesla Chief Executive Elon Musk stands in front of the cracked windows of company's first electric pickup truck, the Cybertruck, after it was unveiled and a metal ball was thrown at the windows, in Los Angeles, California.

Tesla ‘shatterproof’ windows crack. Tesla Inc’s highly anticipated unveiling of its futuristic pickup truck suffered a setback after its “armoured glass” windows shattered during a demonstration.

During the tightly choreographed unveiling of the Cybertruck to cheering fans on Thursday, Tesla boss Elon Musk had taken a stab at the design, power and durability of mainstream trucks, only to be shaken when his boast about his new truck’s windows backfired.