Skip advert
Advertisement
Car group tests

Audi A4 vs Lexus IS

The IS has been a consistent top choice in Driver Power. How will it measure up to our favourite, the new A4?

suv

Ask who enjoys the best service, reliability and build quality, and Lexus drivers will shout loudest. In the executive class, these attributes carry the most weight, which partly explains why the brand has been such a dominant force in all our Driver Power reports.

Yet is the firm’s IS compact executive car really all it’s cracked up to be? Since the original was replaced in 2005,it has failed to topple Audi, BMW and Mercedes rivals in Auto Express group tests. So how would it fare against the very latest contender in the sector: the new A4?

Advertisement - Article continues below

Putting Audi’s most fashionable design cues to good use, this is a great-looking saloon. It merges the appeal of the A5 coupé into a four-door body, giving a sleek shape, which could only be criticised for not standing out from the crowd.The Lexus is just as discreet, with sharp lines and accurate details making it well proportioned, rather than daring.

Take a seat behind the wheel of the Audi, and it instantly feels more modern than its rival. The A4 cabin is packed with the latest features, including lane keep assistance, the MMI cabin control system and a stylish typeface on the dials. While the IS deserves all the accolades for its build quality, it simply isn’t as up-to-date as the A4.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

GLC

2019 Mercedes

GLC

95,327 milesAutomaticDiesel2.1L

Cash £12,694
View GLC
Golf

2024 Volkswagen

Golf

33,003 milesManualDiesel2.0L

Cash £13,999
View Golf
V40 Cross Country

2019 Volvo

V40 Cross Country

40,011 milesAutomaticPetrol1.5L

Cash £9,801
View V40 Cross Country
E-Class Coupe

2023 Mercedes

E-Class Coupe

22,564 milesAutomaticPetrol2.0L

Cash £24,303
View E-Class Coupe

Considering all the success Lexus has enjoyed in Driver Power over the years, it’s amazing that the saloon finished an abysmal 93rd out of 100 in one category of the 2008 poll. You told us the model’s practicality is unacceptable, especially now there is no estate variant available.

According to our tape measure, the IS provides only 680mm of rear legroom – less than all but the Mazda 2 in this test! The A4 isn’t much better, with 690mm. What lets the Lexus down most of all, though, is the boot.

Advertisement - Article continues below

At 378 litres, the capacity is 102 litres short of the A4’s, while the odd-shaped Lexus load bay measures 950mm in length. In comparison, the Audi’s luggage area is 1,050mm long. What’s more, IS owners have to put up with a ski hatch when loading awkward items; A4 buyers get full-width folding rear seats.

Maybe the Japanese model can make up some ground out on the road? The key attraction for any Lexus has always been refinement, and you can see why from inside the IS. You rated it highly for comfort, and the saloon is a quiet and relaxing car to drive or be driven in. But your scores rightly point out that the ride isn’t class-leading. The A4 teaches the IS a thing or two about dynamics with its brand new platform. It’s far more grown-up than its predecessor, and offers great body control, inspiring plenty of confidence when cornering. The Audi’s sharp steering and keen handling abilities leave the IS feeling heavy on its feet in comparison.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Another blot on the Lexus’s Driver Power scorecard is in the performance category. While the new range-topping version, the V8-powered IS F, is too new to have featured in our report, the 2.5-litre V6 petrol and 2.2-litre diesel models are off the pace, according to owners. On paper they’re reasonable enough, with both covering 0-60mph in less than nine seconds. But as the Lexus puts the emphasis on refinement, its lazy power delivery and slurring auto box can make for an unresponsive experience in everyday driving conditions. Manual models also suffer from an awkward clutch, so smooth getaways are tricky.

Advertisement - Article continues below

Go for a base 1.8-litre A4, and straight-line speed is even more sluggish. But the petrol and diesel V6s are sparkling performers, and both the manual and automatic transmissions are superb.

The IS finished at the top of the running costs category in Driver Power 2008, which is impressive for a compact executive model. The diesel puts 40mpg economy within genuine reach, while solid build and great reliability help Lexus owners avoid unexpected maintenance bills, too.

And that will only add to the IS’s appeal come service time. Lexus’s network has topped the dealer ranking since Driver Power began, with faultless scores right across the board. Prices for the Japanese car start at £23,142, and rise to £51,105 for the IS F flagship. Audi offers a cheaper entry-level model for £19,900, and with no sign of the new RS4 yet, the current range-topper weighs in at £33,640.

Driven back-to-back, the A4 is clearly the better all-round choice. But will that make it the more satisfying car to own? With such a well polished dealer network and stress-free ownership experience. the Lexus IS continues to set a strong benchmark for other compact executive models.

Supermini test: Honda Jazz vs Mazda 2

Family car test: Skoda Octavia vs Ford Mondeo

4x4 test: Land Rover Discovery 3 vs Land Rover Freelander 2

Verdict

Skip advert
Advertisement

New & used car deals

Vauxhall Corsa

Vauxhall Corsa

RRP £10,160Avg. savings £5,842 off RRP*Used from £9,599
Hyundai Tucson

Hyundai Tucson

RRP £11,680Avg. savings £4,230 off RRP*Used from £11,680
Renault Clio

Renault Clio

RRP £9,390Avg. savings £4,116 off RRP*Used from £7,500
Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,557 off RRP*Used from £18,490
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Volkswagen’s culling of 75 models by 2035 was inevitable, says CEO
Volkswagen Polo - front cornering

Volkswagen’s culling of 75 models by 2035 was inevitable, says CEO

Brand boss Thomas Schäfer says halving the number of models made by the VW Group is part of a “natural transition”
News
14 Oct 2026
Car Deal of the Day: Hyundai Ioniq 3 at £206 per month will get the neighbours talking
Hyundai Ioniq 3 - front action

Car Deal of the Day: Hyundai Ioniq 3 at £206 per month will get the neighbours talking

The Ioniq 3 is one of a new crop of affordable EVs. It’s our Deal of the Day for 15 October.
News
15 Oct 2026
New Land Rover Defender Sport spotted tearing it up on the Nürburgring
New Land Rover Defender Sport - Nürburgring front 3/4

New Land Rover Defender Sport spotted tearing it up on the Nürburgring

The new baby 4x4 is now likely to be revealed in 2027, and our exclusive image previews how it could look
News
15 Oct 2026