(17 Mar 2015, 7:45 pm)DaveyBowyer wrote What Arriva could do as a trial near Xmas is, bring one of the X93 B9s upto Ashington. Run it on one full day of X21 / X22 boards and X18 boards whilst using the same drivers do the exact same boards beforehand on another day with a 14 or 64 reg E400. Then compare the data and see whether or not a more powerful vehicle would be suited and get driver feedback too.
I guess there wouldn't be much point in doing a trial with a Volvo B9TL, given that this vehicle is no longer manufactured. Perhaps get one of those Scanias you like, when they release a demonstrator vehicle!