Skip advert
Advertisement
Car group tests

Mercedes C-Class Coupe

Two-door diesel trails on power, but offers plenty of class

The C-Class Coupe marks a return to form for Mercedes, after years in the compact coupe doldrums. The old hatchback-styled CLC simply didn’t have the looks, quality or driver appeal to cut it in this market.

Slotting into the range below the E-Class Coupe, the latest car is much more promising. Familiar Mercedes styling cues are clear to see, and from the front bumper to the base of the windscreen it’s identical to the Sport-spec saloon. As a result, the slightly bluff front end doesn’t look as sleek as the Audi’s.

Advertisement - Article continues below

However, the screen is more steeply raked than the four-door’s and the rest of the body is unique to the Coupe. Its rising waistline and smart detailing give the car a stylish look in profile. The neat AMG bodykit and standard 18-inch wheels go some way to matching the kerb appeal of our A5 S line, too.

Inside, the Mercedes doesn’t feel as special as the Audi. A facelift to the C-Class range last year brought improved materials, new dials and a tweaked layout, and we can’t fault the quality. But while the A5 was built from the ground up as a coupe, the Mercedes gives away its saloon roots with its flat dashboard and high-set driving position.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

V40

2016 Volvo

V40

75,231 milesManualDiesel2.0L

Cash £7,495
View V40
e-tron GT

2024 Audi

e-tron GT

51,876 milesAutomaticElectric

Cash £31,679
View e-tron GT
Leon

2024 SEAT

Leon

32,518 milesManualPetrol1.5L

Cash £15,999
View Leon
Grandland

2024 Vauxhall

Grandland

18,475 milesManualPetrol1.2L

Cash £14,599
View Grandland

In terms of practicality, though, the two cars are closely matched, with adults in the back of the C-Class finding their knees brushing the front seats, just as they do in the A5. But the full-length panoramic roof (a £1,350 option) eats into rear headroom in the Mercedes; if you plan to carry adults in the back regularly, we’d steer clear of this option.

As with the A5, the C-Class’s rear seat splits and folds as standard, and this boosts the car’s 450-litre load capacity.

Advertisement - Article continues below

Head to the test track and the 2.1-litre four-cylinder C250 CDI punches above its weight, and gives the 3.0-litre V6 Audi a run for its money. The twin-turbo engine pumps out an identical 500Nm of torque, and provides similar in-gear performance to the A5.

On the road, throttle response isn’t as sharp and the engine doesn’t have the upmarket refinement you’d expect. There’s some rattle at start-up and it isn’t as smooth as the TDI through the mid-range. But as the CDI has to be worked hard, it takes on a slightly sporty and raspy nature at higher revs.

It isn’t just the engine that’s a mixed bag. The C-Class has standard adaptive dampers, but its suspension has been lowered by 15mm. It feels softer than the Audi and on smooth roads it’s more compliant. However, on bumpy tarmac it fidgets.

Through corners there’s a fraction more roll and not as much grip as in the Audi, but the rear-wheel-drive chassis delivers reasonable feedback and handling composure.

The question is whether buyers will look beyond the Mercedes’ less appealing interior and be won over by its financial benefits – as it’s cheaper and more efficient than its rival here.

Details

Chart position: 2
WHY: The C-Class Coupe has a level of desirability lacking in its predecessor – the hatch-styled CLC – and slots into the line-up below the E-Class Coupe.

Skip advert
Advertisement

New & used car deals

Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,089 off RRP*Used from £13,290
Vauxhall Corsa

Vauxhall Corsa

RRP £19,870Avg. savings £5,301 off RRP*Used from £9,477
Skoda Kodiaq

Skoda Kodiaq

RRP £39,045Avg. savings £3,528 off RRP*Used from £8,970
Volkswagen Golf

Volkswagen Golf

RRP £25,860Avg. savings £2,514 off RRP*Used from £8,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Best car engines of all time
Best car engines - header image

Best car engines of all time

What makes a great internal-combustion motor? We explain why these petrols, diesels and even a hybrid made the list
Features
3 Apr 2026
Maybe I’m just getting old, but modern cars should be less complex to drive
Opinion - Paul Barker driving the Polestar 3

Maybe I’m just getting old, but modern cars should be less complex to drive

Editor Paul Barker wants his car to act more like a car, and less like a smartphone
Opinion
1 Apr 2026
Motability to force black box trackers on all drivers under 30
Wheelchair user plugging a charging cable into a Vauxhall Astra Electric

Motability to force black box trackers on all drivers under 30

The Motability Scheme, which provides cars for disabled drivers, has faced new changes after Government tax hikes
News
2 Apr 2026