(20 Jun 2014, 6:06 pm)V514DFT wrote I dont think they all are,cus many moons ago i remember them being new to arriva and on the old M55 some are in arriva original colours but i could be wrong so dont quote me on it haha
They are 4001-7 in the Arriva fleet, though only 4 remain in service now, and all are due to be withdrawn imminently.