Elon Musk Says Boring Co. Has Spent $40 Million

Scenes from Musk’s California launch party

Take a Look Inside Musk's First Boring Tunnel
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Elon Musk took the wraps off Boring Co.'s first completed test tunnel with a lot of razzle-dazzle and a surprise twist in the underlying technology.

At an event on the fringes of Space Exploration Technologies Corp. headquarters in Hawthorne, California, Musk stood in front of a large hole in the ground that led to a mile-long tunnel and pronounced it officially open.