Drivers of all shapes and sizes will be comfortable behind the wheel of the B4 S; there is plenty of shoulder room across the cabin. However, the centre console is a little cluttered when compared with, for example, that in the Mercedes-AMG C 63 Coupé.
The rear seats are far from being a token gesture towards practicality. Even six-feet-tall passengers will be able to clamber in easily enough, thanks to the wide doors and front seats that slide far forward and out of the way. Once inside, there's a surprising amount of leg room, but the sloping roof means your passengers will have to slouch to stop their heads from brushing the ceiling. There’s only room for two in the back – with the space between them given over to an armrest.
As standard, the rear seats in the B4 S split and fold 60/40. Once folded down, the backrests sit at a slight angle rather than fully flat, and the parcel shelf is fixed so that there's a restriction on the height of objects you can fit into the boot.
The B4 S’s boot is on a par with those in similar rivals such as the Audi RS5, but is bigger than a Mercedes-AMG C 63 Coupé’s. The boot's wide, square shape makes it relatively easy to load, but there is a deep lip so heavier luggage needs to be dropped (rather than slid) inside. With the rear seats down, there's even more room, and the rear passenger footwells double up as extra storage.