Real consumption at CV D-Cat?

Hello first of all. I need a new car – my Saab has been shot down (unfortunately!) and is looking for an alternative that offers me similar driving fun with more economy. I am on the road a good 35,000 km a year and don’t buy 177hp to use it more often. This also includes regular motorway rides beyond the 150km/h. How is the consumption then, because a van is particularly low-currently not (but the space is tempting)? So – who drives his Verso not in the gentle course but rather with the pedal on the floor plate and tells me honestly what the consequences have on the fuel meter? Greeting by moose