Skip advert
Advertisement

Mercedes C320 CDI Sport

Sharper looking and more agile, Merc is a strong choice

tereotypes dictate that Mercedes’ C-Class is the steady, mature choice in the compact executive sector. To combat this, the company offers the latest model with two distinct noses. And helped by its more aggressive bumpers, chrome touches and shapely headlights, the Sport variant looks glamorous and aggressive.

It’s certainly far more modern than the Jaguar, although parked next to high-spec versions of the Audi and BMW, the black C320 appears a little low-key.

Advertisement - Article continues below

Unfortunately, while it’s well put together, the Mercedes’ cabin design lacks flair. The shapes and materials are closer to an A-Class than an S-Class, while the switchgear, dash and dials can’t match the A4’s upmarket feel. Piano black trim and chrome detailing restore some class to the Sport’s interior, while even entry-level cars get a central COMAND cabin control knob. Specify the optional sat-nav, and this is complemented by a pop-up colour dashtop screen.

The driving position isn’t quite as comfortable as the BMW’s, as the seats lack side support and the wheel is large. There’s enough room in the back for two adults, but as in the 3-Series and A4 the transmission tunnel takes up space. The C-Class’s boot is smaller than its German competitors’, although there’s more room than in the Jag.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

A4

2025 Audi

A4

30,816 milesAutomaticDiesel2.0L

Cash £20,807
View A4
5008

2020 Peugeot

5008

74,517 milesManualPetrol1.2L

Cash £12,212
View 5008
S-Max

2017 Ford

S-Max

100,435 milesAutomaticDiesel2.0L

Cash £8,795
View S-Max
Model 3 Premium

2023 Tesla

Model 3 Premium

63,000 milesAutomaticElectric

Cash £15,999
View Model 3 Premium

In terms of torque, the Merc’s 3.0-litre diesel falls directly between the Audi and BMW, with a 510Nm output. But a power figure of 224bhp only betters the Jag. This doesn’t seem to matter on the road, where the CDI unit delivers gutsy performance. The C320 matches the Audi’s 6.5-second 0-60mph time, and in kickdown its responses are only a couple of tenths slower than the BMW’s. Where the Merc lags behind the 3-Series is with its gearbox. The seven-speed transmission doesn’t work as well as the BMW’s auto. The response from the C320’s paddleshifters isn’t as fast in manual mode, and even when driving in auto it searches for gears a little too often.

Advertisement - Article continues below

And while refinement is good, the Mercedes V6 drones at low revs and isn’t as smooth as the 330d when accelerating. It also trails the BMW in the handling department. The latest Mercedes lacks the agility of the 3-Series and doesn’t have the composure of the four-wheel-drive Audi.

Neither is the ride perfect. On motorways the C-Class scores well for cruising comfort, but the suspension gets unsettled on bumpy roads. What sets the Merc apart is that it has the sector’s best residual values. Can this make up for shortcomings in other areas?

Details

Price: £33,775
Model tested: Mercedes C320 CDI Sport
Chart position: 3
WHY: In Sport trim, the C-Class creeps further into BMW’s driver-focused territory.

Economy

The Mercedes isn’t as expensive to buy as the BMW and comes with an auto gearbox as standard. Yet as it puts out so much CO2, it’s the most costly company car – it sits in the 29 per cent bracket, while the BMW is in 23 per cent. Plus, road tax is £210 a year. Servicing prices are comparable to the BMW and Audi’s, while the 46.4 per cent residuals are the best in this test. But strangely, the Mercedes is more expensive to insure than its competitors.

Skip advert
Advertisement

New & used car deals

Skoda Kodiaq

Skoda Kodiaq

RRP £39,390Avg. savings £9,673 off RRP*Used from £25,250
Kia Sportage

Kia Sportage

RRP £12,380Avg. savings £3,506 off RRP*Used from £11,650
Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,557 off RRP*Used from £15,700
Hyundai Tucson

Hyundai Tucson

RRP £11,770Avg. savings £4,230 off RRP*Used from £11,770
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Tories spark rumours of 'heavy car tax' in Labour budget - here’s what it could cost
Land Rover Defender V8 - front cornering

Tories spark rumours of 'heavy car tax' in Labour budget - here’s what it could cost

The Conservative Party is claiming that Chancellor John Healey may bring a weight-based car tax supplement in with the next budget
News
23 Oct 2026
Renault 5 has significant upgrades to come, but don’t expect revolution
Renault 5 - front action

Renault 5 has significant upgrades to come, but don’t expect revolution

The popular Renault 5 will be a mainstay in the brand’s range for years to come, but it won’t spawn extra MINI-style models
News
23 Oct 2026
BMW iX5 review
BMW iX5

BMW iX5 review

The BMW iX5 blends everything we love about the iX3 with some useful extra space – but it’ll cost you
In-depth reviews
22 Oct 2026