ACC3017 Class 66 Colas No.66849 Diesel LocomotiveAdditional Information Directional Lighting Working Tail Lamp 21 Pin DCC Stay Alive Power Pack Fitted Colas Rail Freight leased 5 class 66 locomotives following the collapse of Advenza freight (numbered 66841 to 66845), in 2011 these locomotives were then leased on to GBRF. Leaving a hole in the fleet, Colas purchased 5 class 66 locomotives from Freightliner (formerly numbered 66573 to 66577). These 5 were given a fresh coat of Colas house colours and