It's called the Music City Loop, and the project marks Musk's latest effort to bolster his budding business empire in Tennessee. His artificial intelligence startup xAI, the parent of social media platform X, is building data centers and a power plant in Memphis, on the western side of the state.

Elon Musk's Boring Company has proposed an underground tunnel from Nashville's airport to downtown. Readers offer their takes.

The ‘Tesla in Tunnels’ project will connect the Nashville International Airport to downtown.