I'm tempted to use my PRIV to do Euston-Glasgow in the next few weeks, naturally would be walk-up on the day. Will it likely be too busy to get a seat reservation? I'm tempted to use the PRIV since advances probably wouldn't be very cheap now, plus I don't know exactly when the trip will be. Likely returning back to London at a later date.
Also, may I ask whether I can do one of the cheap on-board first class upgrades on a PRIV?
Also, may I ask whether I can do one of the cheap on-board first class upgrades on a PRIV?