KMB Scania N113DRB6x2 prototype Being the third air-conditioned double-decker bus supplier of the Kowloon Motor Bus, in 1993, Scania introduced two N113DRB prototype to KMB for evaluation purpose. The two buses are bodied with Walter Alexander RH-type bodywork assembled in Scotland. Chassis Number: YS4NC6X2B01820465 ( AS1 ~ FU482 ) Chassis Number: YS4NC6X2B01820466 ( AS2 ~ FU2948 ) Model: Scania N113DRB6x2 Engine: Scania DS11-74 Cylinder capacity: 11,020cc Maximum power output: 257bhp @ 1,900rpm Maximum torque output: 1,073Nm @ 1,100rpm Transmission: Voith DIWA-863, 3-Speed fully-automatic Bodywork: Walter Alexander RH-Type Capacity: U63 / L39 + S23 Dimensions: 11,544mm (Length) / 2,450mm (Width) / 4,478mm (Height)