Audi S6 Avant 2019: Performance Estate Review And Specs

The 2019 Audi S6 Avant marks a bold shift for Audi’s S-line, swapping petrol for a refined diesel powertrain that delivers exceptional torque and efficiency without sacrificing excitement. This wagon excels as a versatile family hauler with sports car credentials, blending motorway prowess, twisty-road agility, and everyday usability.

Powertrain Evolution: Diesel Takes Charge

Audi’s decision to equip the S6 Avant with a 3.0-liter V6 turbodiesel engine producing 344 bhp at 3,850 rpm and a staggering 700 Nm (516 lb ft) of torque from 2,500 to 3,100 rpm transforms the driving experience. Paired with a 48-volt mild-hybrid system and an electric compressor, it eliminates turbo lag, providing instant low-end response ideal for real-world acceleration.

The eight-speed Tiptronic automatic transmission ensures smooth shifts, though it occasionally hunts for gears in dynamic driving—paddle shifters offer quick overrides. Quattro all-wheel drive distributes power effectively, achieving 0-62 mph in 5.1 seconds and a limited top speed of 155 mph, despite the 2,020 kg curb weight. Official WLTP economy stands at 35.3 mpg for the Avant, with real-world tests reporting around 32-36 mpg on mixed routes.

Driving Dynamics: Balanced and Capable

On motorways, the S6 Avant shines as a refined cruiser. The diesel’s torque makes overtaking effortless, while noise insulation keeps the cabin serene even at high speeds. The mild-hybrid aids efficiency during coasting and stop-start traffic.

Beyond highways, the chassis surprises with agility. All-wheel steering reduces the turning circle and enhances maneuverability, making this large estate feel nimble in urban settings and on winding roads. Standard adaptive air suspension (optional on base models) absorbs bumps effectively, though 21-inch wheels may firm up the ride on rough UK surfaces.

Steering is precise but lighter than rivals like the BMW 5 Series Touring, prioritizing comfort over ultimate feedback. Grip is abundant, with minimal understeer, though the front-heavy diesel setup introduces some body roll in Dynamic mode—best reserved for comfort-oriented drives. Overall, it’s engaging for its class, prioritizing versatility over track-focused sharpness.

Design and Aerodynamics: Sleek Aggression

The S6 Avant’s exterior evolves the A6 platform with sportier cues: wider stance, aggressive front grille, quad exhausts, and subtle S badging. LED Matrix headlights and 21-inch alloys enhance its presence without ostentation.

• Front fascia: Honeycomb grille and sharper bumpers for a predatory look.
• Side profile: Extended wheel arches and roof rails emphasize estate utility.
• Rear: Diffuser and oval tailpipes signal performance intent.

Aerodynamic tweaks, including active grille shutters, contribute to efficiency. At 4.95 meters long, it commands road respect while remaining practical.

Interior Refinement: Luxury Meets Technology

Inside, the S6 Avant offers a premium haven. High-quality leather, aluminum trim, and soft-touch surfaces create an upscale ambiance. Dual 12.3-inch screens form the Virtual Cockpit and MMI touchscreen, running intuitive software with haptic feedback.

Sport seats provide excellent support for long hauls, with massage functions available. Rear space accommodates adults comfortably, even at six-foot height, thanks to a generous wheelbase. Ambient lighting and a Bang & Olufsen sound system elevate the experience.

Practicality and Load Capacity

As an Avant estate, practicality is key. The power tailgate reveals 565 liters of boot space with seats up (550 liters per some tests), expanding to 1,670 liters folded—enough for five suitcases or bulky gear. A low load lip and 40/20/40 split-folding seats add flexibility.

Cabin storage includes deep door bins, a through-loading hatch, and ISOFIX points. Towing capacity reaches 2,500 kg braked, suiting active families.

Safety and Driver Assistance

The 2019 A6 platform earns top Euro NCAP ratings (implied from base model). Standard features include adaptive cruise control, lane-keeping, traffic jam assist, and 360-degree cameras. Pre-sense front and night vision are optional.

• Automatic emergency braking with pedestrian detection.
• Blind-spot monitoring and rear cross-traffic alert.
• Matrix LED headlights for adaptive illumination.

Ownership Costs and Rivals

Priced around £62,000, the S6 Avant undercuts some rivals but options inflate totals. Diesel efficiency offsets BIK taxes for company users. Servicing follows Audi’s schedule, with mild-hybrid tech promising reliability.

Rivals include BMW M550i xDrive Touring (sharper handling), Mercedes E53 Estate (hybrid efficiency), and Alfa Romeo Giulia Sportwagon (purer dynamics). The S6 excels in all-round balance.

Pros and Cons at a Glance

• Pros: Massive torque, spacious boot, refined ride, tech-laden interior, strong economy.
• Cons: Heavy weight affects agility, light steering, options escalate price, diesel not for rev-happy drivers.

FAQ

Is the 2019 Audi S6 Avant faster than its petrol predecessor?

No, 0-62 mph is 5.1 seconds vs. 4.6 seconds previously, but superior torque makes it feel punchier in daily use.

What’s the fuel economy like in real life?

Owners report 32-36 mpg on mixed driving, better than petrol equivalents.

Does it have air suspension standard?

No, it’s optional; steel springs are standard but air enhances comfort.

How practical is the boot?

565 liters seats up, 1,670 folded—excellent for families or gear-hauling.

Is Quattro standard?

Yes, all S6 models feature permanent all-wheel drive.

Verdict: A Modern Masterclass in Versatility

The 2019 Audi S6 Avant proves diesel can power a premium performance estate brilliantly. Its torque-rich engine, opulent interior, and cavernous load area make it ideal for discerning families seeking speed without compromise. While not the sharpest handler, its composure and efficiency secure a top spot in the segment.