Iveco trucks despite what other people say are fine the but comes with the after sales,I suspect you are buying this on an Iveco funded lease I would ask them to put an uptime guarantee on the truck/ deal so any issues are shared.
We operate a number of euro 6 stralis and generally they are fine ; We operate a 17 plate 480 later spec and the fuel is better … 10 mpg really depends whose driving , we get 8 mpg pulling a walking floor so Into that you’ve got to account for time on PTO, maybe high 9’s are more realistic.
Stralis isn’t a bad truck to operate to make profit and let’s be honest that’s what we are all in it for .