That piece describes the Roller Beetle so well! The whole track is like musically driving the Roller Beetle, first part is like powering up the speed-up button, and when there is this culmination point it's like driving on the highest speed, and then the last part is like drifting and then stopping.
I listened to the song while driving my little Bug, and I can confirm, that it really fits the whole, nice experience that this mount gives.
But is there a chance to have a theme for other mounts too? There is High Roller and Desert Skimming and Reins of the Raptor. Any chance for Griffon, Jackal and Springer's themes?
Seek, and you shall find.