Skip advert
Advertisement

Mercedes SL500

Our verdict on the lighter, more efficient and more powerful Mercedes SL roadster

Overall Auto Express rating

4.0

How we review cars
Find your Mercedes SL
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

The new Mercedes SL is a welcome return to form for one of the longest-running cars on sale. It’s better in almost every way than its predecessor. Mercedes has delivered a sharper driving experience, while the V8 engine is more powerful and uses less fuel, thanks mainly to a 125kg drop in weight. It’s still no sports car, though – more of a GT. And we wish the styling was a little bit more adventurous.

Advertisement - Article continues below

It’s nearly 60 years since the first Mercedes SL was introduced. The name stands for ‘Sports Lightweight’, yet as successive generations have piled on the pounds, the car has become more of a large and luxurious grand tourer.

Now there’s an all-new SL, and behind the conservative styling you’ll find a state-of-the-art aluminium bodyshell. And at 1,785kg, it’s 125kg lighter than the model it replaces.

We drove the SL500, which will be the most powerful version until the SL63 AMG arrives. It has a twin-turbocharged 4.7-litre V8 that produces 429bhp. That’s 49bhp more than the old SL500, yet fuel consumption has been reduced by 22 per cent, to 31mpg. The entry-level SL350, which has a 3.5-litre V6, does even better – making 302bhp while returning 41.5mpg.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Qashqai

2022 Nissan

Qashqai

18,000 milesAutomaticPetrol1.3L

Cash £23,765
View Qashqai
Yaris Cross

2021 Toyota

Yaris Cross

27,563 milesAutomaticPetrol1.5L

Cash £21,471
View Yaris Cross
Tucson

2023 Hyundai

Tucson

17,000 milesManualPetrol1.6L

Cash £22,793
View Tucson
Avensis

2012 Toyota

Avensis

41,618 milesManualDiesel2.0L

Cash £13,012
View Avensis

It’s hard not to love a car that sounds this good. Progress is accompanied by a raucous V8 soundtrack, and the engine is just as happy to burble slowly around town as it is to flex its muscle on the open road.

A sharper driving experience was one of the main priorities for the new SL, and it’s immediately clear that the stiff aluminium construction has improved things significantly. We drove the car on some rough Spanish roads and there was no sign of the scuttle shake that usually affects open-top cars.

Our test model was fitted with the optional Active Body Control system, which gives excellent ride quality combined with roll-free cornering. But the SL is still a Grand Tourer rather than a true sports car: you’re reminded of its significant weight whenever you try to press on a bit.

The full equipment list is as long as your arm, but highlights include a Front Bass system, which uses the bodyshell as a subwoofer, as well as wiper blades with tiny holes that apply screenwash, so you don’t get splashed with the roof down.

Plus, optional Magic Sky Control allows you to switch the roof panels from transparent to opaque at the touch of a button.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £26,995Avg. savings £7,800 off RRP*Used from £12,200
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £4,975 off RRP*Used from £14,295
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,614 off RRP*Used from £9,372
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,949 off RRP*
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Dacia’s baby EV due in 12 months with a tiny £15k price tag
Dacia £15k EV design render

Dacia’s baby EV due in 12 months with a tiny £15k price tag

Dacia's new model will be developed in double-quick time, and it'll be built in Europe to avoid China tariffs
News
24 Jul 2025
Renault will “stick to the plan” as it hits number 2 in Europe
Renault 5 - front static

Renault will “stick to the plan” as it hits number 2 in Europe

Renault has no plans to fight Volkswagen for sales supremacy, despite huge growth in EV sales due to new Renault 5
News
23 Jul 2025
Hyundai slashes prices across its entire EV range
Hyundai Ioniq 5 - front cornering

Hyundai slashes prices across its entire EV range

Korean brand acts swiftly to cut prices on all its electric cars, amid confusion over Government’s grant scheme
News
25 Jul 2025