Skip advert
Advertisement

Mercedes SL500

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

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

SL Class

2024 Mercedes

SL Class

16,000 milesAutomaticPetrol2.0L

Cash £62,989
View SL Class
SL Class

2024 Mercedes

SL Class

32,000 milesAutomaticPetrol2.0L

Cash £53,989
View SL Class
SL Class

2017 Mercedes

SL Class

33,645 milesAutomaticPetrol3.0L

Cash £29,552
View SL Class
SL Class

2016 Mercedes

SL Class

64,005 milesAutomaticPetrol3.0L

Cash £21,995
View SL Class

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

Mercedes SL Class

Mercedes SL Class

RRP £110,030Used from £53,989
Volkswagen Polo

Volkswagen Polo

RRP £9,490Avg. savings £2,419 off RRP*Used from £6,270
Audi A3

Audi A3

RRP £10,940Avg. savings £2,554 off RRP*Used from £10,940
Nissan Qashqai

Nissan Qashqai

RRP £10,720Avg. savings £6,248 off RRP*Used from £10,720
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Car Deal of the Day: Hyundai Ioniq 3 at £206 per month will get the neighbours talking
Hyundai Ioniq 3 - front action

Car Deal of the Day: Hyundai Ioniq 3 at £206 per month will get the neighbours talking

The Ioniq 3 is one of a new crop of affordable EVs. It’s our Deal of the Day for 15 October.
News
15 Oct 2026
New Mercedes-AMG GT SUV: the Porsche Cayenne’s worst nightmare is here
Richard Ingram with the Mercedes-AMG GT SUV

New Mercedes-AMG GT SUV: the Porsche Cayenne’s worst nightmare is here

Featuring three axial flux motors and up to 1,153bhp, Merc’s calling its new AMG ‘the hi-tech SUV with sports-car DNA’
News
17 Oct 2026
New Fiat Grizzly: all the details on the £20k Dacia Bigster rival
Fiat Grizzly - Paris

New Fiat Grizzly: all the details on the £20k Dacia Bigster rival

Fiat will offer the Grizzly in petrol, hybrid and electric forms when it goes on sale in January 2027
News
16 Oct 2026