2021 Mercedes-Benz S Class

3.0 S500L Mhev AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (Executive, Premium Plus) (451 bhp)

£41,950

Far under the typical £58,253 for this model, age and mileage, drawing on 544 adverts of this make and model: £16,303 less. Worth asking why.

Overview

Make: Mercedes-Benz
Model: S Class
Trim: AMG LINE
Version: 3.0 S500L Mhev AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (Executive, Premium Plus) (451 bhp)
Mileage: 46,000 miles
Year: 2021
Fuel type: Petrol
Body type: Saloon
Engine: 3.0 L
Gearbox: Automatic
Power: 451 bhp
Seats: 5
CO2: 171 g/km
Colour: Grey
Doors: 4
Driven wheels: Rear Wheel Drive
Gearbox version: G-Tronic+
Engine badge: S500L; MHEV
Hybrid type: Mild hybrid
Emissions standard: Euro 6

About this car

With 46,000 miles on the clock, this 2021 Mercedes-Benz S Class AMG Line has done roughly 6,200 more miles than a typical 2021 Mercedes-Benz S Class. The dealer is asking £41,950, which is £16,303 below our market estimate of £58,253. We recommend confirming the advertised price and vehicle details. To estimate its market asking price, we analyse UK dealer adverts for 544 Mercedes-Benz S Class cars across different ages and specifications. It first appeared in our advert records 30 days ago. Its MOT is recorded as valid until 22 January 2027. The advertised mileage is consistent with the latest MOT reading. It is for sale at Classic Cars of Wirral in Birkenhead.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 25 September 2026, 30 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observed	Asking price
25 September 2026	£41,950
23 October 2026	£41,950

Price and mileage comparison

Estimated market asking price: £58,253. The asking price is £16,303 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 544 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 6,200 miles higher than typical for a 2021 Mercedes-Benz S Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 22 January 2027. 46,085 miles at the last test.

4 other cars with the same year, trim, gearbox and fuel are for sale from £48,495 to £65,950.

Other matching cars
Asking price	Mileage
£48,495	86,281 miles
£54,995	18,800 miles
£64,490	26,397 miles
£65,950	36,535 miles

These cars have covered 18,800–86,281 miles, compared with 46,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Mercedes-Benz S Class cars for sale · 2021 Mercedes-Benz S Class price guide

Vehicle photos

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