I thought the Sprinters were designed to operate at 135 MPH even if Amtrak only operates them at 125 MPH.
From Marriott Biscayne Bay Miami (for Breakfast; my "Miami Girl Friend" works here)--
While my music is "not exactly rock", I could not help but notice at both Miami Central and at West Palm, this song was playing in the background:
https://youtu.be/1k8craCGpgs
Even though, I believe Brightline will end up in the public sector (and maybe with smart heads who will not dilute the impeccable customer service I found), maybe its time for skeptics like me to "Don't Stop Believing".