As you would expect the interior of the A6 Avant is identical to the saloon. All the switchgear is laid out in an orderly set-up. The focal point in the cabin is the knob that controls the MMI infotainment system – it allows you to control audio, the Bluetooth phone interface and the sat-nav.

The multimedia system itself isn’t as advanced as the latest efforts from BMW or Mercedes, but still features attributes such as Wi-Fi connectivity, Google Earth mapping and touchpad letter entry. We can’t think of many useful features it doesn’t have.

In the main the materials used in the cabin are of extremely high quality and build quality feels top-class.

As you move up the trim structure more stylish kit becomes available, with S Line models getting sportier touches. The S6 Avant and RS 6 Avant get S and RS branding respectively. 

It may not be as cosseting as a Mercedes E-Class Estate but the Audi A6 Avant is one of the most luxurious in the sector. Regardless of what trim you pick, whether it be SE or S Line, it’s well insulated and noise intrusion is minimal.

The car rides well over undulating surfaces which means it’s best on motorways but it can still hold its own on B-roads. Just stick to smaller wheels rather than opting for the larger 20-inch wheels as these can make the ride feel jittery even on smooth surfaces.

There is little road noise from the tyres and some wind intrusion – this is largely down to the large wing mirrors. The seats are well bolstered and the side supports hold you in well when cornering.

As you might expect, the sportier your A6 gets the firmer the suspension. The RS 6 Avant is particularly unforgiving, but of course makes up for this in terms of sheer outright performance.

The S6 Avant strikes a good balance between comfort and sportiness.