Elon Musk promises longer, curved tunnel for future Hyperloop contests
 

In a departure from previous years, next year's Hyperloop competition will be held in a six mile curved vacuum tunnel. Previously, the competition was held in a straight ¾ mile test tunnel which is located at SpaceX's headquarters in Hawthorne...

https://www.engadget.com/2019/07/22/...curved-tunnel/