LNER are running charity specials between 18th-21st December to commemorate the retirement of HSTs on the East Coast network.
They are repainting a full set in original BR Inter-City livery, power cars in blue and yellow, and Mk3 carriages in blue and grey. The diesel traction world speed record holding power car, 43302, will be in the consist.
No details on tickets yet as far as I can find.
https://www.railmagazine.com/news/network/four-day-charity-hst-to-feature-original-liveryHere's a thought for LNER....rather than spending fortune repainting an entire train for the sake of a couple of trips, why not donate the cost to charity too? 🙄