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

2019 Mercedes

SL Class

31,878 milesAutomaticPetrol3.0L

Cash £38,851
View SL Class
SL Class

2016 Mercedes

SL Class

61,661 milesAutomaticPetrol3.0L

Cash £19,050
View SL Class
SL Class

2019 Mercedes

SL Class

48,000 milesAutomaticPetrol3.0L

Cash £29,995
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 £110,810Used from £29,995
Toyota Yaris Cross
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,496 off RRP*Used from £11,323
Volkswagen Golf

Volkswagen Golf

RRP £24,625Avg. savings £2,565 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

New speed cameras without flash or road markings arrive to catch more motorists
Speeding camera

New speed cameras without flash or road markings arrive to catch more motorists

The new type of radar-based speed cameras are currently being trialled in London
News
19 Mar 2026
Stansted Airport blames new £28 drop-off fee for drivers on ‘sustainability’
airport parking

Stansted Airport blames new £28 drop-off fee for drivers on ‘sustainability’

The price of a 15-minute drop off now costs £10, while a 30-minute stop incurs a £28 charge
News
20 Mar 2026
10 coolest SUVs coming soon: new models aim to take the 4x4 market by storm
Coolest SUVs coming soon - March 2026 header image

10 coolest SUVs coming soon: new models aim to take the 4x4 market by storm

These are fresh SUVs we can’t wait to arrive, from Skoda’s butch baby electric SUV to McLaren’s loftiest creation ever
Best cars & vans
20 Mar 2026