It's then, company head Elon Musk says, that they will hold a special event, with free rides for the general public happening the next day. In advance of the opening of the opening (in the ground), Musk has tweeted out a short video (embedded below) giving us an idea of what to expect.

As videos go, and without trying to make a bad pun (no, really), this one is kind of boring. The concrete walls of the tube appear drab and a chunky cable lopes along one side while the other is fitted with a pair of pipes. The ceiling of the relatively small tunnel is obscured by what appears to be some sort of ventilation ducting.

Musk has said he wants Tesla vehicles to bring maximum enjoyment to the driving experience, and we hope he brings that same ethos to tunnel travel. It will be interesting to see whether the walls get painted or special lighting is added to enhance the optical part of the experience ahead of the big day.