Skip advert
Advertisement

Mercedes SL 350

Does ageing design detract from the appeal of prestige grand tourer?

Meet one of the world’s most established luxury sports cars. The Mercedes SL has been on sale in various guises since 1954. And following the success of the folding hard-top on the smaller SLK, it was no surprise that the technology was introduced on the flagship cabrio in 2001.

A major facelift and round of mechanical improvements in 2008 kept the SL up to date, but look past the familiar Mercedes face of the reworked model, and it’s starting to appear a bit dated.

Advertisement - Article continues below

The problem isn’t terminal, though, and the £2,860 optional AMG body styling kit fitted to our car improves matters. It includes deeper front and rear aprons, plus side skirts, and gives the SL an aggressive edge without taking away any of the car’s class. Inside, the model’s age is much more obvious. The dash design is old-fashioned, while lots of the switchgear is a generation behind the more attractive buttons and switches found in modern Mercedes models. The shiny finish on the transmission tunnel feels and looks cheap for a car in this price range.

Sit down and things improve. The seats are comfortable and there’s plenty of space around the driver. When it comes to everyday usability, you get handy storage boxes behind the front seats, while the large rear screen provides excellent visibility. Our car’s £1,440 glass top lets lots of light into the cabin, too.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

C-HR

2018 Toyota

C-HR

85,373 milesAutomaticPetrol1.8L

Cash £13,197
View C-HR
5-Door Hatch

2021 MINI

5-Door Hatch

65,140 milesManualPetrol1.5L

Cash £10,197
View 5-Door Hatch
XC90

2022 Volvo

XC90

64,457 milesAutomaticDiesel2.0L

Cash £27,697
View XC90
A5 Sportback

2025 Audi

A5 Sportback

69,573 milesAutomaticPetrol2.0L

Cash £18,697
View A5 Sportback

The roof is the crowning glory of the SL. The folding mechanism is fully automated, with the two-part hard-top stowing away in only 17.5 seconds. It reduces the 339-litre load area by 104 litres in the process, but even with the hood down, there’s a reasonable amount of luggage space below the protective boot divider.

Advertisement - Article continues below

Mercedes knows a thing or two about how to make great convertibles, and it shows. You get a fabric wind deflector and heated seats as standard, while the firm’s £420 Airscarf system wafts warm air around your neck. All of this makes the SL great to drive with the roof down in almost any weather.

Once you’ve got the wind in your hair, the SL 350’s 3.5-litre V6 goes some way to making up for the deficiencies of the cabin. It’s silky smooth but relatively tame, and really comes alive from 4,500rpm, remaining tuneful up to maximum revs. Performance is strong and linear rather than blistering, and the smooth-shifting 7G-Tronic automatic transmission is a perfect match.

In corners, the SL is capable but not engaging. It’s a cruiser rather than an out-and-out sports car; the steering could be more precise, while the chassis feels numb. It’s composed, though, and the £2,640 optional Active Body Control suspension set-up ensures sharp handling.

The traction control is slightly intrusive, but the Mercedes coupé-cabriolet still inspires plenty of confidence.

It’s relatively comfortable, too, although the firm ride means vibrations are sent through the body when you go over coarse surfaces. Even so, it’s easy to see why the SL remains such a popular and respected hard-top roadster.

Details

WHY: With a history that stretches back to the Fifties, the SL is one of the most evocative Mercedes models ever made

Skip advert
Advertisement

New & used car deals

Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,499 off RRP*Used from £11,274
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,556 off RRP*Used from £9,562
Toyota Yaris Cross
Skoda Kodiaq

Skoda Kodiaq

RRP £39,025Avg. savings £3,528 off RRP*Used from £9,222
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Long-term test: BYD Sealion 7
BYD Sealion 7 - front tracking

Long-term test: BYD Sealion 7

Second report: all is not rosy in the garden when it comes to driving our BYD
Long-term tests
13 Mar 2026
Are car headlights too bright? How hi-tech LED lights prioritise the driver but risk dazzling everyone else
Vauxhall Grandland - lights on

Are car headlights too bright? How hi-tech LED lights prioritise the driver but risk dazzling everyone else

LED headlamps on cars may improve visibility at night, but some people say they’re too bright. We investigate the issue and what can be done
Features
9 Mar 2026
New Jaecoo 8 challenges the Hyundai Santa Fe with seven seats, 83-mile EV range and £45k price tag
Jaecoo 8 - front

New Jaecoo 8 challenges the Hyundai Santa Fe with seven seats, 83-mile EV range and £45k price tag

Flagship seven-seat SUV features 422bhp all-wheel-drive plug-in powertrain, plus Land Rover-style Terrain Response system
News
11 Mar 2026