Skip advert
Advertisement

Audi A4 3.0 TDI S Line

Bigger, better, but is our current class favourite still the best?

Now in its eighth incarnation, the A4 has long been a compact exec front-runner. Even though the car has been a sound alternative to a BMW or Mercedes for years, only the latest version won us over with enough conviction to take class honours. Will its victory be short-lived?

While its shape is pure Audi, the model has grown in size and stature. It’s longer, lower and wider, and its styling has a sharper edge that makes the A4 less about fitting in and more about making a statement. It has the longest wheelbase here, giving a spacious interior. Rear legroom is class-leading and the 480-litre boot is the biggest of this quartet, while folding seats come as standard, unlike in the BMW and Mercedes.

Advertisement - Article continues below

Crucially, the A4 hasn’t only got bigger; its quality is better, too. Attention to detail is tough to beat, putting the cabin on a par with the class above. Features such as the Multi Media Interface (MMI) control system and electric parking brake are standard, while in S line trim you get a sporty wheel and gearlever as well. Add a superb driving position and the cabin is hard to fault.

And don’t think the luxury feel won’t last once you’ve left the showroom. The V6 TDI not only matches the BMW for refinement, but it’s gutsy, too. The engine is quiet, and delivers its power smoothly and quickly. It has fractionally less torque and power than the 330d, and an extra 30kg of weight to carry, so the A4 was three-tenths slower from 0-60mph, with a time of 6.5 seconds.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Focus

2020 Ford

Focus

40,868 milesAutomaticDiesel1.5L

Cash £13,680
View Focus
X5

2023 BMW

X5

55,059 milesAutomaticPetrol3.0L

Cash £39,520
View X5
E-Class Estate

2020 Mercedes

E-Class Estate

61,782 milesAutomaticDiesel2.0L

Cash £17,998
View E-Class Estate
ZS

2018 MG

ZS

21,219 milesAutomaticPetrol1.0L

Cash £12,500
View ZS

However, the Audi feels equally punchy in-gear, and with the heavy but precise shift it’s easy to make the best of the performance. Four-wheel drive gives excellent grip when cornering, while bypassing the need for traction control when pulling away.

This sense of security and composure carries over to the handling. With superb body control, sharp steering and a positive turn-in, the A4 is involving and agile in a way that previous generations have never been. Our car had the £1,300 Audi Drive Select system that gives you adjustable active dampers and dynamic steering. A switch lets you choose between Comfort, Auto and Dynamic settings, while you can program your own setting via the MMI.

Advertisement - Article continues below

Even without the hi-tech wizardry, the A4’s chassis is impressive, with exceptional cornering composure at speed. Strong brakes are a big plus, too, and even though our car has large 19-inch wheels, the S line Audi has a smoother ride than the BMW. While it’s still firm, it doesn’t fidget as much over bumpy surfaces and is more comfortable on the motorway.

And then we come to the price list. The S line model represents top value for money, and so the A4 is cheaper to buy than either the Mercedes or the BMW. It will be very tough to beat in this test.

Details

Price: £32,700
Model tested: Audi A4 3.0 TDI S Line
Chart position: 2
WHY: A well rounded image and superb design have pushed the A4 to the top of the class.

Economy

We received similar quotes for servicing the Audi as for the 3’s three-year pre-paid deal, and both cars have variable schedules. But the A4’s higher emissions mean your tax disc will cost £170 a year. It also sits two groups higher than the 3-Series, in the 25 per cent company car tax bracket – so only the cheaper list price stops the A4 being the more costly option. Its biggest advantage is its predicted used value, with a strong 44.9 per cent residual.

Skip advert
Advertisement

New & used car deals

Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £5,118 off RRP*Used from £12,295
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,761 off RRP*Used from £9,973
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £1,912 off RRP*Used from £7,299
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?
Electric car charging mega test - charging overhead

EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?

The head of the biggest EU party has told the press that from 2035, car manufacturers must reduce CO2 emissions by 90 per cent
News
15 Dec 2025
Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained
Ford Bronco Sport 2025

Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained

Exclusive analysis reveals Ford’s comeback plan: new Fiesta EV, hybrid crossover and working with Renault and VW
Features
11 Dec 2025
Car Deal of the Day: brand new Nissan Micra arrives with a bang at only £204 a month
Nissan Micra - front cornering, higher angle

Car Deal of the Day: brand new Nissan Micra arrives with a bang at only £204 a month

Before we’ve even had a chance to drive it in the UK, the all-new Nissan Micra is our Deal of the Day for 13 December
News
13 Dec 2025