Audi A6 saloon front space
Although the A6 has slightly less front leg room than the BMW 5 Series and Mercedes E-Class, that's a bit like saying the Asian elephant is smaller than the African when the point is that both are big old beasts. Besides, when it comes to head room, the A6 is one of the biggest beasts out there.
You'll also find it has plenty of width for your elbows, although if you’re tall and have the seat slid well back, you run out of armrest on the door, because it’s too short.
There are some storage compartments dotted around, but compared with the E-Class and 5 Series it lacks the additional convenience of a large cubby under the centre armrest or tray to dump odds and sods in the centre console.
Audi A6 saloon rear space
As this luxury class encompasses really palatial stuff, including the long-wheelbase Mercedes S-Class and Rolls-Royce Phantom, the A6 was never going to be the biggest. Yet of its immediate price peers, it's rather good.
The rear seats offer far more head and leg room than the E-Class, for instance, and there's even a centimetre or two of added leg room over the 5 Series, which itself is pretty big. Seating three adults side by side is also better than its chief rivals, but before you get too excited, that still means it's a bit of a squeeze for the middle passenger, who has to straddle a tall central floor tunnel.
Audi A6 saloon seating flexibility
There’s nothing of great consequence to report here; you don't get the multi-adjustable, electric rear seats that are available in the A6's bigger brother, the A8. Yet you do get 40/20/40 split-folding rear seats as standard – a feature you have to pay extra for on the BMW 5 Series and Mercedes E-Class.
It's a shame you don't get levers inside the boot opening to drop the rear seats, because they would make the job more convenient. Instead, you have to walk around the car and open its rear doors to pop the levers atop its rear seatbacks.
Audi A6 saloon boot space
The A6 gets top marks here. Even compared with bigger cars such as the S-Class, the A6 has more space in the boot, fitting nine carry-on suitcases to prove the point. That's one more than the BMW 5 Series can manage, and even though the E-Class will match it, that's only if you include its underfloor storage well.
When you fold down the A6's rear seats, they lie almost flat and leave no step between the boot and passenger compartment, which makes loading long items relatively easy.