Some railway cars that were allocated to my late father, based in Gloucester:
Ford Cortina (blue) 870 GYK (I think this was originally a pool car, because he was too tall for the allocated car: a mini)
Vauxhall Viva (light blue) YMT 329H
Vauxhall Viva (white) TLX 646M
Ford Escort (butterscotch) ??? ???S
I think the numbers are right, but I'm dredging up memories from over 30 years ago!