As we mentioned a few weeks ago of the Metro Cars currently in service on the Tyne and Wear Metro there are four which weren’t refurbished and as such can only interwork between themselves. Last time we saw them the two prototypes – 4001 and 4002 – were being used together but this has now changed with Emirates all over advert car 4083 now paired with 4002. Unusually these cars were allocated to a non-peak working on Monday 25th March – usually the non-refurbished cars are usually only used on peak workings. The fourth unrefurbished car – 4040 – remains out of service meaning that 4001 is also unable to be used.