Mercedes SL43 AMG Valuation: 11 ads analysed

Market overviewWhat is the fair price of a used Mercedes SL43 AMG? We have 11 for sale. Prices from £64,980 to £113,410. See variants (Premium Plus, Premium) and check the valuation.

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-3%
1 / 4

Used (2024) Mercedes SL43 AMG Premium 421 HP | Good price

SL[421] Premium 2dr Auto

  • 2024
  • 10 miles
  • Trim levelPremium
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 421 HP (309 kW)
  • CO2208 g CO2/km comb.
  • Details
autouncle-certified

Good price

£100,498
£104,398
Dealer
AB12 3BE Aberdeen
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Availability verified
-7%
1 / 4

Used (2023) Mercedes SL43 AMG Premium Plus 381 HP | Fair price

SL-ClassPremium Plus 2dr Auto

  • 2023
  • 4,521 miles
  • Trim levelPremium Plus
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 381 HP (280 kW)
  • Details
autouncle-certified

Fair price

£72,995
£78,995
Marketplace
WC1E 7DP London, London
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Availability verified
-5%
1 / 4

Used (2024) Mercedes SL43 AMG Premium | Fair price

SLPremium 2dr Auto

  • 2024
  • 3,250 miles
  • Trim levelPremium
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • Details
autouncle-certified

Fair price

£71,995
£75,995
Marketplace
BD19 4EW Cleckheaton, West Yorkshire
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Availability verified
1 / 4

Used (2023) Mercedes SL43 AMG Premium Plus 381 HP | A bit pricey

SL Premium Plus 2dr Auto

  • 2023
  • 7,500 miles
  • Trim levelPremium Plus
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 381 HP (280 kW)
  • Details
autouncle-certified

A bit pricey

£72,500
Marketplace
DN17 2TX Scunthorpe, Lincolnshire
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New
1 / 4

New (2025) Mercedes SL43 AMG Premium Plus 421 HP

- [421] Premium Plus 2dr Auto

  • 2025
  • 0 miles
  • Trim levelPremium Plus
  • Petrol
  • Cabriolet
  • Automatic
  • 421 HP (309 kW)
  • mpg9.0
  • CO2215 g CO2/km comb.
  • Details
£111,460
Not evaluated
Verified Marketplace
NW90HX, London
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Availability verified
1 / 4

New (2025) Mercedes SL43 AMG Premium Plus 421 HP

- [421] Premium Plus 2dr Auto

  • 2025
  • 0 miles
  • Trim levelPremium Plus
  • Petrol
  • Cabriolet
  • Automatic
  • 421 HP (309 kW)
  • mpg9.0
  • CO2215 g CO2/km comb.
  • Details
£113,410
Not evaluated
Verified Marketplace
RM203WJ, Essex
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Availability verified
1 / 4

New (2025) Mercedes SL43 AMG Premium Plus 421 HP

-[421] Premium Plus 2dr Auto

  • 2025
  • 0 miles
  • Trim levelPremium Plus
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 421 HP (309 kW)
  • mpg9.0
  • CO2215 g CO2/km comb.
  • Details
£109,410
Not evaluated
Verified Marketplace
B783PQ, Staffordshire
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Availability verified
1 / 4

Used (2024) Mercedes SL43 AMG 375 HP | Rare vehicle

SL-Class Touring 2dr Auto

  • 2024
  • 2,032 miles
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 375 HP (275 kW)
  • Details
£69,795
£69,980
Rare vehicle
Marketplace
Delivered to you
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Availability verified
-7%
1 / 4

Used (2025) Mercedes SL43 AMG 375 HP | Rare vehicle

SL-ClassTouring Plus 2dr Auto

  • 2025
  • 4,045 miles
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 375 HP (275 kW)
  • Details
£81,995
£88,595
Rare vehicle
Marketplace
SA18QY Swansea
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Availability verified
-1%
1 / 4

Used (2023) Mercedes SL43 AMG 381 HP | Rare vehicle

SL-ClassTouring 2dr Auto

  • 2023
  • 2,500 miles
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 381 HP (280 kW)
  • Details
£74,000
£75,000
Rare vehicle
Marketplace
IP8 3EG Ipswich, Suffolk
View the car
Availability verified
-5%

Used (2023) Mercedes SL43 AMG Premium Plus

SLS 2.0MHEV AMG (Premium Plus)

  • 2023
  • 29,000 miles
  • Trim levelPremium Plus
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • Details
£64,980
£68,980
Not evaluated
Marketplace
Nottinghamshire, Nottinghamshire
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Availability verified
Showing 1 - 11 of 11 results

How much does the Mercedes SL43 AMG depreciate?

Used Mercedes SL43 AMG

A used Mercedes SL43 AMG (2025) model loses about £617 per month in value.


Factors that affect the depreciation of a Mercedes SL43 AMG:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Mercedes SL43 AMG. In addition to the monthly depreciation of £617, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.

How much does a used Mercedes SL43 AMG cost? Prices, ratings and depreciation by model year

How much does a used Mercedes SL43 AMG cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2025 Mercedes SL43 AMG

£81,995 - £113,410£104,0690 miles-£7,400< 10

2024 Mercedes SL43 AMG

£69,980 - £100,498£80,8242,032 miles-£19,360< 10

2023 Mercedes SL43 AMG

£64,980 - £74,000£71,1196,010.5 miles+£300< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 29 January 2026

Comparison of Mercedes SL43 AMG variants and prices

Below you can compare prices and depreciation for the 1 most popular Mercedes SL43 AMG variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Mercedes SL43 AMG variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

💰 The budget choice

Mercedes SL43 AMG Premium Plus

£64,980 - £113,410£90,7932,260.5 miles-£32,040< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 29 January 2026

Which variant should you choose?

💰 The budget choice

The Premium Plus is the cheapest entry point with an average price of £90,793.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most Premium Plus for sale right now (6), which gives you the most options to choose from.

Accuracy will improve as more cars from this variant become available

📈 The best value

The Premium Plus has held its price stable with minimal loss in value over the past year (-£32,040).

Accuracy will improve as more cars from this variant become available

Mercedes SL43 AMG (model year 2025) - Price development for the last 10 months and price projection for the next 6 months (March 2025 - June 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - March
£111,760
£111,760£111,760
Estimate
2025 - April
£112,440
£111,620£113,260
Estimate
2025 - May
£110,760
£108,380£113,120
Estimate
2025 - June
£109,060
£105,140£112,980
Estimate
2025 - July
£107,380
£101,920£112,860
Estimate
2025 - August
£105,700
£98,680£112,720
Estimate
2025 - September
£104,000
£95,440£112,580
Estimate
2025 - October
£102,320
£92,200£112,440
Estimate
2025 - November
£100,640
£88,960£112,320
Estimate
2025 - December
£104,360
£93,360£115,360
Estimate
2026 - February
£103,160
--
Forecast
2026 - March
£102,540
--
Forecast
2026 - April
£101,940
--
Forecast
2026 - May
£101,340
--
Forecast
2026 - June
£100,740
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 29 January 2026

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

-£7,400

Next 6 months

-£3,620

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Thinking about buying a used Mercedes SL43 AMG?

Are you thinking of purchasing a used sports car? Then the Mercedes SL43 AMG is a great choice. AutoUncle has 19 used Mercedes SL43 AMGs for sale in the UK sourced from various dealership websites and online marketplaces.

What is the price of a used Mercedes SL43 AMG?

Currently, the prices for a pre-owned Mercedes SL43 AMG start at £67,500 and go up to £113,410.

The German car is valued at different prices based on primarily five factors: production year, engine size and performance, fuel economy, how many miles the car has travelled not to mention the level of equipment in the car.

For instance, a car that is newer and has fewer miles on the clock will typically command a higher price. In the same vein, models at the higher end, replete with luxurious features or more robust engines, generally come with a more substantial price tag than, for example, an older model with more kilometres driven or with a lower equipment level.

Does the Mercedes SL43 AMG offer multiple trim lines?

The most popular equipment variants for the Mercedes SL43 AMG are:

In order to find the best sale price, it is important that you exclusively compare with the prices of cars with the same equipment variant and engine size. Otherwise, you could reach a wrong decision on which car to acquire.

What fuel configurations can I choose from for the Mercedes SL43 AMG?

The principal fuel kind for a Mercedes SL43 AMG is petrol.

Price difference between the most popular fuel options for Mercedes SL43 AMG:

  • Mercedes SL43 AMG petrol: 18 cars currently available with an average price of £84,737
  • Mercedes SL43 AMG plug-in hybrid: 1 car currently available with an average price of £77,950

It's highly recommended to reflect on your driving patterns before making a decision on the fuel type. On a regular week, how far do you drive? Do you engage in many brief trips, or are your drives generally longer in distance?

For short journeys, electric cars, plug-in hybrids or petrol cars are obvious choices. If you have a daily commute over longer distances, a modern electric car can be a great choice - especially if you have access to charging at home or at work. Diesel cars may still be relevant in some cases with very long journeys and lack of charging options. Remember that diesel engines with high emissions are prohibited from entering cities in various countries.

What kind of car is the Mercedes SL43 AMG?

The Mercedes SL43 AMG only exists in the cabriolet body type in the UK. Cabrios and convertibles give the driving experience a new dimension. Thanks to their excellent hoods and weather gear, most models are fit for year-round use these days. Thickener is applied underneath the car to strengthen the chassis in lieu of a roof, which means that convertibles have a tendency to be heavier than normal cars.

What other cars offer some of the same features as the Mercedes SL43 AMG?

Several vehicles that are similar to the Mercedes SL43 AMG are available.

Alternative cars to the Mercedes SL43 AMG

  • BMW 420
  • Audi TT
  • Mazda MX5

The top competitor to the Mercedes SL43 AMG is the BMW 420. There are 1,733 of this car for sale in the UK right now and the average selling price is £17,750.

Another popular choice in this class is the Audi TT with 1,042 cars on the market and an average price tag of £13,990. Another good choice for an alternative car is the Mazda MX5 with 689 cars for sale for the average price of £14,695.

Reflecting on the move to an electrically powered car?

Considering something greener than the Mercedes SL43 AMG? Check out these electric alternatives from the same segment::

Still searching for the ideal electric vehicle? See all our available electric cars here.