Speeding up when being overtaken

I’ve sensed that ecoroll thingy trying its luck when forced to sit behind the wheel of one our euro6 Dafs, can’t say drive the things cos half the time the bloody lorry takes over anyway…which begs another question does the lorry share the dock with you when it’s an at fault accident?

I used to use Irish overdrive as much as the next man in the days of Gardners that were flat out at 48/52mph, but i’ll choose when i’m going to coast thanks all the same, cos thats what ecoroll is bloody coasting, if me next mule has that dubious feature it’ll be getting locked in manual like all me lorries since 2005 and the ecoroll can do one.