Ive got to say, I love driving my ZS.......I didn't buy it for economical purposes, I brought it for the fun! Which it definitely is.
Just driven 292 miles, 20 miles b roads and the rest motorway/A roads. It was so comfy and smooth, handled really well on the back road parts. And as a bonus, I've still got 1/4 tank of fuel left! That's driving at 70mph max