Skip advert
Advertisement

Audi A4 2.0 TDIe SE

Conventional diesel saloon takes on our hi-tech green trio

The Audi A4 represents the old guard in this test. With its traditional diesel engine and old-fashioned manual gearbox, the executive saloon can’t match its rivals for hi-tech, eco-friendly engineering.

But don’t discount the A4 just yet. A recent mid-life refresh has resulted in a number of changes, including the introduction of an even cleaner TDIe model, as tested here.

Advertisement - Article continues below

Featuring a number of mechanical tweaks, the latest addition to the A4 line-up promises to return a remarkable 65.7mpg and emit only 112g/km of CO2. So, will its mix of upmarket appeal and supermini running costs be enough to beat its new-age rivals?

The A4 definitely can’t match the other cars here for visual impact. As with other models in the recently revised range, the headlamps and front grille have been subtly altered, while the TDIe gets 20mm lower sports suspension. However, the sober-suited Audi doesn’t attract as much attention as the futuristic Ampera and boldly styled Leaf.

Inside, the A4 leads the way for quality and practicality. Its cabin is beautifully built from high-grade materials, while the slickly designed dashboard is clearly and logically laid-out. The classy and desirable ambience of the A4’s interior is a cut above its rivals.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

C4

2023 Citroen

C4

44,627 milesAutomaticPetrol1.2L

Cash £11,600
View C4
e-208

2023 Peugeot

e-208

14,937 milesAutomaticElectric

Cash £13,200
View e-208
A3 Sportback

2024 Audi

A3 Sportback

59,495 milesManualPetrol1.5L

Cash £16,100
View A3 Sportback
C-HR

2022 Toyota

C-HR

28,615 milesAutomaticPetrol1.8L

Cash £19,600
View C-HR

It’s spacious, too. Rear occupants enjoy the most head and legroom of our quartet, while the well shaped boot will swallow a generous 480 litres of luggage – 180 litres more than the Ampera. Fold the rear bench flat and that figure increases to 962 litres.

There’s plenty of standard kit as well. In SE trim, you’re treated to Bluetooth, climate control and rear parking sensors. Yet you have to pay extra for leather trim and sat-nav, both of which are standard on the Vauxhall.

Advertisement - Article continues below

The A4 was comfortably the quickest of our contenders at the test track: its smooth and responsive 134bhp 2.0-litre diesel needed only 9.4 seconds to accelerate the car from 0-60mph. What’s more, the Audi is the most engaging choice from behind the wheel. Its new electrically assisted steering lacks feel, but there’s plenty of grip and decent body control in corners. Only the extremely firm ride spoils the otherwise excellent dynamics.

However, this test is more about reduced running costs than performance and poise – and that’s where the Audi struggles. Despite having fuel-saving kit such as stop-start and regenerative braking systems, the A4 could manage only 32.4mpg on our 40-mile commuting route. It returned a reasonable 39.7mpg on the test overall.

Plus, while the 112g/km emissions are impressively low in isolation, this car is the dirtiest of our group. As a result, it’s by far the costliest company choice, with higher-rate earners forking out £1,378 a year in tax. That’s £599 and £266 more than Vauxhall and Lexus respectively. Further adding to the A4’s woes are relatively weak residuals of 41.2 per cent.

Yet the Audi isn’t out for the count. It’s by far the most refined and upmarket choice here, plus it’s the best to drive. Will that be enough for the old guard to score a win?

Details

Chart position: 2
WHY: Can a more traditional efficient diesel saloon hold its own among the latest advanced hybrid and electric-powered competition?

Skip advert
Advertisement

New & used car deals

Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,104 off RRP*Used from £24,490
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £6,189 off RRP*Used from £12,295
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,481 off RRP*
Skoda Kodiaq

Skoda Kodiaq

RRP £39,025Avg. savings £3,517 off RRP*Used from £9,970
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Some Chinese car brands are doomed to disappear, warns Skoda boss
Skoda Kodiaq - front cornering

Some Chinese car brands are doomed to disappear, warns Skoda boss

Skoda’s sales and marketing boss warns “there will be a consolidation” of the number of Chinese car brands around
News
3 Feb 2026
New Kia EV1 electric city car on the way to rival the Renault Twingo
Kia EV1 - front (watermarked)

New Kia EV1 electric city car on the way to rival the Renault Twingo

Kia's design boss lifts the lid on plans for a Renault Twingo and Volkswagen ID. Lupo rival, and our exclusive images preview how the EV1 could look
News
2 Feb 2026
Meet Renault’s new SUV: a Dacia Duster but not as we know it…
Renault Duster - front

Meet Renault’s new SUV: a Dacia Duster but not as we know it…

Posher inside and out and with more headroom, welcome to the upside down world of the Indian Duster
News
26 Jan 2026