Passenger & boot space
How it copes with people and clutter
You're unlikely to consider the coupé version of the S5 if space is your top priority, but it isn’t as impractical as you might imagine. There's certainly plenty of front space; even if you’re extremely tall you’re unlikely to have any complaints about how far your seat slides back or how much room there is above your head. A couple of six-footers will fit in the back, too, although they’ll have to slouch to keep their heads from brushing against the ceiling.
In fact, even the Sportback version, which has rear doors, isn’t exactly palatial in the back, but access is obviously much easier so it’s worth the relatively small premium if you plan on carrying people in the back more often than just in emergencies.