py_megapixel
Established Member
Doesn't sound like an insurmountable problem to me; all that's needed is multiple trolleys.With a 400m train it'll have the "Stansted Express" problem. By the time it's got to some passengers leaving Euston, Washwood Heath will be coming past the window!
Basing it on the catering facilities provided on trains at the moment, two trolleys to serve Standard starting from opposite ends, plus an extra one to serve First, seems like it would be adequate.