Ghibli as a daily driver, is it feasible?

[greysquirrel]

I currently have a 5 series and do about 25k miles a year. I would like a GT but couldn't stomach the fuel costs, so would a diesel ghibli cope with this level of mileage.
I know a diesel maser is sacrilege and most reviews say it isn't as good as a 5 series or E class, but I just have like the look of it and the marque is appealing.
Surely to market the car against the 5/E it has to be equivalent but for some reason I just can't see the ghibli coping with the miles well (servicing still looks high in comparison also) - would I be mad to get one? Or do I just buy a GT for the weekend and keep my 5?