We are just back from a trip to Belgium. 800km each way plus driving around in Belgium itself.
We were really worried about cargo space. But there is plenty of space in the Coupé.
Even with the privacy cover. You could still remove that and care for your own privacy and safety to gain even more space.
The additional spaces behind the seats came in very handy, too. Big improvement over the 350Z. Never thought that.
MPG was around 24, but only because there was a lot of Germany in between.