Skip advert
Advertisement

New Audi A6 2018 review

We hit British roads in the all-new Audi A6 to see if it’s got what it takes to be an executive champion

Find your Audi A6
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Audi has raised its game with this A6; quality, technology, comfort, refinement and performance have all taken a leap forward. It’s a practical and premium car that’s beautifully built, but it’s business as usual when it comes to the driving, because the newcomer isn’t as engaging as a BMW 5 Series. However, company car buyers might prioritise the A6’s strengths ahead of driver involvement.

Advertisement - Article continues below

SUVs are eating into the territory of traditional executive saloons, but the premium four-door market isn’t dead yet. Certainly not according to Audi, because the level of development and tech the firm has committed to this fifth-generation A6 makes it the most advanced yet. And it’s very good indeed.

The car still sits on the VW Group’s MLB evo platform – although it’s been reworked, naturally – while there’s a fresh engine, too. In line with Audi’s new naming structure for its powertrains, this 40 TDI model denotes a 2.0-litre four-cylinder turbodiesel that produces 201bhp and 400Nm of torque.

• Best executive cars on sale

It drives the front wheels through a seven-speed S tronic dual-clutch gearbox; there’s no quattro four-wheel drive or manual option available with this motor yet. That’s no great shame, because the combination works sweetly.

Four-cylinder diesels can sound coarse sometimes and ruin the sophistication of otherwise nicely refined cars like this. Not so with the A6. You hear a faint diesel growl, but it’s well suppressed. Plenty of torque low down means you can make progress easily, but extend the engine and it still isn’t too noisy or rough.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

A6

2021 Audi

A6

95,647 milesAutomaticPetrol2.0L

Cash £16,819
View A6
A6

2023 Audi

A6

28,999 milesAutomaticDiesel2.0L

Cash £24,549
View A6
A6

2018 Audi

A6

74,600 milesAutomaticDiesel2.0L

Cash £12,994
View A6
A6

2021 Audi

A6

47,952 milesAutomaticDiesel2.0L

Cash £18,197
View A6

The 40 TDI delivers more power than its closest rivals and revs fairly well, while the seven-speed box is snappy and goes about its business without intrusion when left to its own devices.

Advertisement - Article continues below

With launch control, the car covers 0-62mph in 8.1 seconds and the top speed is 152mph – not that it particularly matters. But comfort does, because business-focused saloons like this are likely to spend plenty of time on the motorway. Our S line-spec car rode on 19-inch alloys and featured sports suspension with a 10mm lower ride height. S line Audis of old crashed and banged over bumps, but not this one. Even without adaptive dampers there’s a level of compliance on big wheels you might not expect initially.

It’s best at mid speeds, where the dampers do a more than respectable job of containing the energy injected into the suspension by bad roads.

At higher speeds on the motorway, ridges and joints in the tarmac give the A6’s chassis a little more to do and it doesn’t cope quite so admirably. But comfort is only degraded by a small amount, and cruising refinement is still excellent.

• New Audi A6 55 TFSI review

While the suspension doesn’t compromise the ride, it benefits handling. The steering is direct and light when comfort mode is selected, but short on feel, although there’s enough grip. The balance isn’t as sweet as in a BMW 5 Series and it’s not as engaging, but it’s certainly fit for purpose.

Advertisement - Article continues below
Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

And the interior is easily a match for the BMW’s. The materials are mostly sumptuous and mean the A6 feels worth its £42,000 price tag. Plus build quality is as solid as we’ve come to expect from a modern Audi.

Heated, half-leather, half-Alcantara sports seats are standard, as are matrix LED lights, cruise control, and front and rear parking sensors with a reversing camera. Other kit includes Apple CarPlay and Android Auto, autonomous braking, lane departure warning and sat-nav.

There aren’t many options you’d need, although our car had the £1,495 Technology Pack that upgrades the nav unit to a 10.1-inch screen and adds a 12.3-inch Virtual Cockpit digital dash and wireless charging – tech points that enhance the A6’s advanced interior.

It’s big in the back and comfortable, too. Legroom is plentiful and doesn’t come at the expense of practicality, because the 565-litre boot will swallow lots of stuff. Yet the driving position doesn’t feel as natural as a 5 Series’ because you sit higher in the Audi.

The BMW is the car that’ll form the A6’s closest competition, and we’ll find out how strong a challenge it poses soon. For now, on first acquaintance in the UK, the Audi feels like it’ll easily run the 5 Series close for the coveted title of executive saloon champ.

Skip advert
Advertisement

Sean’s been writing about cars since 2010, having worked for outlets as diverse as PistonHeads, MSN Cars, Which? Cars, Race Tech – a specialist motorsport publication – and most recently Auto Express and sister titles Carbuyer and DrivingElectric. 

New & used car deals

Audi A6

Audi A6

RRP £52,110Avg. savings £5,393 off RRP*Used from £15,995
BMW 5 Series

BMW 5 Series

RRP £53,110Avg. savings £11,807 off RRP*Used from £35,980
Audi A5

Audi A5

RRP £42,760Avg. savings £4,331 off RRP*Used from £14,595
BMW 3 Series

BMW 3 Series

RRP £34,175Avg. savings £7,702 off RRP*Used from £9,700
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Two new Volvo models on the way this year, and an estate car could follow
Volvo XC40 - front cornering

Two new Volvo models on the way this year, and an estate car could follow

Significantly upgraded SUVs are likely for 2026, but Swedish firm is also leaving the door open for new estate cars in future
News
17 Jul 2026
eVED pay-per-mile road tax explained: will it make EVs pricier than petrol?
eVED pay-per-mile road tax

eVED pay-per-mile road tax explained: will it make EVs pricier than petrol?

From April 2028, EV drivers will be forced to pay three pence for every mile they drive, over and above their annual road tax fee
News
17 Jul 2026
Long-term test: BMW iX3 50 xDrive M Sport Pro
BMW iX3 long-term test - header

Long-term test: BMW iX3 50 xDrive M Sport Pro

First report: Award-winning first Neue Klasse BMW gets off to a strong start on our fleet
Long-term tests
18 Jul 2026