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

X2

2023 BMW

X2

72,740 milesManualDiesel2.0L

Cash £12,695
View X2
Edge

2017 Ford

Edge

80,740 milesAutomaticDiesel2.0L

Cash £11,495
View Edge
Corsa Electric

2022 Vauxhall

Corsa Electric

7,670 milesAutomaticElectric

Cash £11,995
View Corsa Electric
A1 Sportback

2019 Audi

A1 Sportback

111,940 milesManualPetrol1.5L

Cash £10,495
View A1 Sportback

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

Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*Used from £19,899
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,285 off RRP*Used from £25,726
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,158 off RRP*
Audi A3

Audi A3

RRP £26,295Avg. savings £3,075 off RRP*Used from £10,295
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax
Omoda E5 and Jaecoo E5

Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax

Not a fan of the Government’s 3p per mile road tax proposal for electric cars? Omoda and Jaecoo are already offering discounts they’re promoting as ‘t…
News
26 Nov 2025
Pay–per-mile tax: EV drivers will pay 3p per mile to fill fuel-duty black hole
HM Treasury sign

Pay–per-mile tax: EV drivers will pay 3p per mile to fill fuel-duty black hole

The incoming charges will be applied on top of VED road tax
News
27 Nov 2025
Autumn Budget 2025 revealed: fuel duty, road pricing, tax and potholes
Parliament

Autumn Budget 2025 revealed: fuel duty, road pricing, tax and potholes

Rachel Reeves has unveiled her financial plans for 2026 and beyond; we explain how they will affect drivers
News
26 Nov 2025