What is the PVR of the 15 and does it just interwork with itself so to speak.

Been using it recently instead of the car to get between Consett & Durham and from what I've traveled on so far it seems:

During the day its allocated B9's (awful seats, but actually enjoy the overall ride on most of them) 
Evening Allocated Corporate Solos (or venture, although seems to always be a corporate at the moment) - Love the solos, have since using the 30 a few years ago.  

Sundays allocated Red Kite Streelites