(23 Oct 2023, 12:11 pm)ALavery wrote They were! I completely forgot about that. Even then apart from the section between Chester and Durham that’s a pretty much stop start route, especially with how busy it is. I don’t know who thought putting them on the X5/15 and 16/A with its steep hills was a good idea.I'm not sure how the hybrid system works on them but in theory having the electric motor running in conjunction with the diesel engine on the hills should put less strain on the engine.
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