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

ZS EV

2023 MG

ZS EV

80,000 milesAutomaticElectric

Cash £11,350
View ZS EV
Q4 e-tron

2023 Audi

Q4 e-tron

40,343 milesAutomaticElectric

Cash £19,897
View Q4 e-tron
Karoq

2025 Skoda

Karoq

52,485 milesAutomaticDiesel2.0L

Cash £19,697
View Karoq
Golf R

2020 Volkswagen

Golf R

63,945 milesAutomaticPetrol2.0L

Cash £19,816
View Golf R

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 £39,045Avg. savings £4,998 off RRP*Used from £26,640
Audi A3

Audi A3

RRP £30,210Used from £9,995
Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £5,987 off RRP*Used from £11,150
Vauxhall Corsa

Vauxhall Corsa

RRP £19,705Avg. savings £6,173 off RRP*Used from £9,695
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Mercedes-AMG CLA 45: faster and more powerful than a BMW M3, but £25k less
Mercedes-AMG CLA 45 - front

New Mercedes-AMG CLA 45: faster and more powerful than a BMW M3, but £25k less

The 671bhp CLA 45 is hypercar-quick, while sounding and shaking like its got an angry four-cylinder under the bonnet
News
28 Aug 2026
New Volkswagen ID. California Cruise is the retro electric campervan we’ve been waiting for
New Volkswagen ID. California Cruise

New Volkswagen ID. California Cruise is the retro electric campervan we’ve been waiting for

Off-grid camping in style and comfort is one step closer with VW’s new ID. California Cruise
News
28 Aug 2026
Every new EV ranked 161 to 1: the complete guide to UK electric cars
161 best & worst UK EVs rated - header image

Every new EV ranked 161 to 1: the complete guide to UK electric cars

There are 161 different electric cars on sale in the UK and here’s the complete guide to every one of them…
Features
28 Aug 2026