Skip advert
Advertisement

Mercedes SLK 350

Does the Merc’s folding hard-top give the SLK an extra advantage?

Fresh from a thorough revamp, the Mercedes SLK outsold the TT Roadster in the UK last year. However, that’s hardly surprising, given the fact the
first-generation Audi was six years old. But what we want to find out now is if the SLK deserves to keep its lead in 2007.

Let’s start with the styling. Unlike the Audi, the Mercedes has a traditional roadster shape, with a long nose and a short tail. But although it doesn’t have the same great detailing when viewed up close, the F1-inspired pointed front, sculpted flanks and short tail give it an athletic appearance. And until you see it in action, it’s hard to believe that the roof actually fits under the bootlid – that’s one reason why this work of engineering art is something that owners will never tire of watching.

Advertisement - Article continues below

It’s a shame that it cannot be lowered while cruising gently along for ultimate poseur appeal, but as with the Audi TT’s top there are no catches to release. And the mechanism works quietly, if not exactly quickly. But this isn’t a roof to be rushed – as we said, the way the metal moves is pure poetry in motion.

Even with the top down there’s 208 litres of space in the boot, and with it up the bigger glass area it offers over rivals – it has a larger back screen and taller side windows – not only boosts visibility, but means the cabin is bright and airy.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

ix35

2014 Hyundai

ix35

67,846 milesManualPetrol1.6L

Cash £6,169
View ix35
iX3

2021 BMW

iX3

83,046 milesAutomaticElectric

Cash £17,389
View iX3
iX3

2024 BMW

iX3

29,970 milesAutomaticElectric

Cash £26,504
View iX3
iX3

2021 BMW

iX3

26,457 milesAutomaticElectric

Cash £26,329
View iX3

Unfortunately, the extra light focuses attention on the Merc’s cabin materials, and after the TT and Boxster, the SLK’s shinier, harder
plastics and cheaper looking trim aren’t very appealing. That’s a shame, since the Mercedes is otherwise very elegantly laid out. However, from the springy pedals to the wobbly column stalks and light steering, none of the controls operate with the precision that Porsche and Audi drivers will be used to.

The vague responses mean the manual SLK isn’t the easiest car to drive at low speeds – and that’s not good when you’ve got 272bhp under your right foot. It can kangaroo when pulling away, due to the long-travel clutch and notchy, awkward gearchange. Mercedes’ seven-speed automatic undoubtedly works better with the 3.5-litre V6 than the manual, but whichever you go for, one thing is guaranteed – Porsche-beating acceleration. With a flat torque curve from 2,400rpm to 5,000rpm and a surprisingly light 1,465kg kerbweight, the rear-wheel-drive SLK scorched from 30-70mph in 5.1 seconds, seven-tenths ahead of the Audi. But while overtaking is effortless and the motor is flexible, it doesn’t sound particularly great. Compared to the meaty TT and 350Z, the SLK’s engine note is rather muted and is accompanied by a distinct transmission whine at higher revs.

Advertisement - Article continues below
Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

The brakes aren’t that impressive, either. It took longer to come to a halt from 60mph than any rival, the ABS activates too quickly and the pedal lacks feel. The same applies to the over-assisted steering, while the suspension isn’t as controlled as rivals, with a tendency to pitch and dive when pushed. This makes it feel comparatively loose and sloppy, a sensation not helped by the over-active traction control. Driven in isolation, the SLK is rewarding, but it’s not a genuine sports car.

Instead it’s happiest when cruising. Although it bucks a bit on bumpy B-roads, generally it’s supple and relaxing. Combine that with the sense of security and isolation generated by the hard-top, and the Mercedes is the best car here for long trips. However, while we can appreciate that the roof must have cost millions to develop, the SLK still seems expensive compared to the TT.

Details

Price: £35,430
Model tested: Mercedes SLK 350
Chart position: 4
WHY: The SLK is a purpose-built roadster and is unique in this test as it has a folding metal roof.

Economy

As with the Nissan, long gearing aided the SLK. It achieved an identical 22.4mpg to the 350Z, although cruising on the motorway saw this rise to 27mpg.

Residuals

The SLK fares really well on the used market, holding on to 57.7 per cent of its new cost. It’ll lose the same amount of money as the £5,000 cheaper 350Z.

Servicing

Mercedes’ network doesn’t enjoy the best reputation, while a £600 third service takes the cost of the first three visits to £1,063, second only to the Boxster.

Tax

It’s not good news if you want an SLK 350 as a company car. As it has the highest list price, top band taxpayers will shell out nearly £5,000 per year.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £27,005Avg. savings £10,288 off RRP*Used from £12,590
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £5,189 off RRP*Used from £9,760
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,158 off RRP*
Renault Clio

Renault Clio

RRP £16,160Avg. savings £4,179 off RRP*Used from £6,595
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Motability’s definition of a ‘premium’ car is outdated, and here’s why
Tom Motability opinion

Motability’s definition of a ‘premium’ car is outdated, and here’s why

Our consumer reporter believes Motability needs to get with the times and reasses what it classifies as a premium car
Opinion
28 Nov 2025
Exclusive car stereo test: are premium car audio upgrades worth it?
 Car Audio test - VW driving

Exclusive car stereo test: are premium car audio upgrades worth it?

We listen to what the experts at Richer Sounds think about car companies' regular and upgraded stereo set-ups
Features
1 Dec 2025
New Kia Seltos ready for big reveal: compact SUV with petrol power to be uncovered in days
Kia Seltos - front teased

New Kia Seltos ready for big reveal: compact SUV with petrol power to be uncovered in days

Kia clearly can’t get enough of the small SUV sector
News
1 Dec 2025