Elon Musk quotes $1 bn to build commuter tunnel in Australia
Replying to an Australian lawmaker's query on Twitter, Musk quoted nearly $1 billion as the cost to build a 50-km-long commuter tunnel through Australia's Blue Mountain. "[S]o probably around $750M plus maybe $50M/station," Musk added without specifying if he was referring to US dollars. Last year, Musk unveiled the first underground transportation tunnel in Los Angeles by The Boring Company.