I know why 2854 is on there if that's any help?? It was on there because earlier in the day (early morning) one of the sapphire pulsars tyres went BANG, this was the only thing in the depot spare at the time

On Wednesday 2 of them had burst radiators (thanks to a sapphire driver telling me this) so maybe that's where the other 2 are

Also the X1 had 1425,1498 on it while 1405 was on the 1/5s

Big thank you to Neil wise for informing me the 1516/1520 are currently awaiting radiators