2025 Audi A6 sedan launches

The 2025 Audi A6 sedan has arrived, with the premium German brand's sedan joining the A6 Avant wagon revealed earlier this year as a mid-size fighter for both the BMW 5 Series and Mercedes E-Class.

Arriving with an ultra-low drag coefficient of just 0.23, the new Audi A6 is claimed to be the most slippery combustion-powered Audi ever made, boding well for efficiency.

Instead of being all-new from the ground up, the sixth-generation A6 is more of an overhaul of the previous model, sitting on the same upgraded platform as before.

Originally, it was supposed to be named the 'A7' before buyer confusion prompted a big rethink of the brand's new naming strategy.

Adopting a look first introduced on the Audi e-tron GT and continued with the smaller A5, the new A6 sedan also has a front face dominated by a large grille that incorporates advanced air bending to channel the air more efficiently over its body.

Both air curtains and a new front splitter are present, plus plenty of underbody panels that are aimed to control air flow and reduce lift for high levels of stability at speed.

At the rear designers say they have created an upward sloping notchback design feature that is said to provide for a sportier stance, while the two rear lamps and LED light bar mirror other models.

Sitting below the battery-powered A6 e-tron sedan and wagon that rides on an entirely different architecture, the new A6 comes with the option of turbo petrol (badged TFSI) or a turbo-diesel that feature a tailgate sporting the familiar 'TDI' nameplate.

Once introduced, most markets will get the choice of two four-cylinder engines - either a 150kW/340Nm 2.0-litre petrol turbo, or a 2.0-litre turbo-diesel that incorporates Audi's latest MHEV Plus mild-hybrid tech and produces 150kW and 400Nm of torque and allows EV-only driving at parking speeds and when engine-off cruising on the highway.

If that's not enough performance a further 3.0-litre turbocharged V6 petrol will also be available that gets the diesel's mild-hybrid tech that sees power ramped up to 270kW.

Later on, an even more powerful version of the turbo V6 will reappear under the bonnet of the sporty S6 sedan and wagon, as well as a plug-in twin-turbo V8 that will deliver supercar-humbling pace and power the RS 6 version.

Inside the A6, the sedan shares the A6 Avant's triple screen set-up, that includes an 11.0-inch digital instrument cluster, a 14.5-inch infotainment screen and an optional 10.9-inch passenger touchscreen.

The sedan also sports the same sunroof tech that can switch from clear to transparent at a touch of a button.

Boot space is decent, with the Audi sedan offering up to 492 litres of luggage space, not far off the 503 litres the A6 Avant delivers, although the mild-hybrid sees that figure drop to 452 litres.

Ensuring it will be among the best to drive the A6 gets the option of agility-boosting rear-wheel steering, while an optional adaptive air suspension is said to enhance both the ride and aerodynamics as it rides 20mm lower than the standard coil sprung car, that can lower a further 10mm in its dynamic mode.

Better window, door and rear boot lid seals, plus noise absorbent tyres and engine and transmission mounts are said to improve sound insulation by as much as 30 per cent for a quiet more refined ride.

Announcing deliveries will begin from around Q3 of 2025 in Europe, the new A6 sedan is priced from €55,000 ($A97,500).

Audi Australia has yet to nail down an official launch date but says the A6 should land locally in a "few months time".

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