Mellor launches Sigma 8 battery-electric bus at Euro Bus Expo
Mellor will present its new electric bus model Sigma 8 bus for the first time at EuroBus Expo at the NEC next week. The eight-metre battery-electric bus is the latest in a six-model Sigma range (from seven- to 12-metres) to hit the UK market, joining seven and 10-metre models launched at the start o...