PC Cathy Bradford: D'you think Reg is all right?
PC Gary Best: He's not exactly Rambo is he?
Insp. Gina Gold: Reg may not be a superhero, but I know who I'd like to be with me in a tight corner and it wouldn't be you, Best, all right.
Season 19, Episode 159. When Des Taviner flips and drives the area car wildly around an industrial estate and into a gas storage facility, you can see that during the sequence the Vauxhall Vectra he is driving starts off as a Y registration, then changes for several shots to a P registration, and then finally back to a Y registration when it blows up inside the building.