2020 Mercedes-Benz GLC

4.0 GLC63 V8 BiTurbo AMG S Auto 4WD Euro 6 (s/s) 5dr SpdS MCT (503 bhp)

£65,990

Above the going rate: £15,310 over the typical £50,680 for this model, age and mileage, drawing on 2,802 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: GLC
Trim: AMG S
Version: 4.0 GLC63 V8 BiTurbo AMG S Auto 4WD Euro 6 (s/s) 5dr SpdS MCT (503 bhp)
Mileage: 20,000 miles
Year: 2020
Fuel type: Petrol
Body type: SUV
Engine: 4.0 L
Gearbox: Automatic
Power: 503 bhp
Seats: 5
CO2: 293 g/km
Colour: Other
Doors: 5
Driven wheels: Four Wheel Drive
Engine badge: GLC63 V8 BiTurbo
Emissions standard: Euro 6

About this car

At 20,000 miles, this 2020 Mercedes-Benz GLC AMG S has covered about 33,000 fewer miles than other 2020 Mercedes-Benz GLC cars. The dealer is asking £65,990, which is £15,310 above our market estimate of £50,680. To estimate its market asking price, we analyse UK dealer adverts for 2,802 Mercedes-Benz GLC cars across different ages and specifications. It first appeared in our advert records 150 days ago. The seller is 51 X, based in Birmingham.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 150 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observed	Asking price
28 May 2026	£65,990
6 July 2026	£65,990
23 October 2026	£65,990

Price and mileage comparison

Estimated market asking price: £50,680. The asking price is £15,310 above 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 2,802 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 33,000 miles lower than typical for a 2020 Mercedes-Benz GLC.

2 other cars with the same year, trim, gearbox and fuel are for sale from £47,199 to £47,795.

Other matching cars
Asking price	Mileage
£47,199	37,000 miles
£47,795	23,503 miles

These cars have covered 23,503–37,000 miles, compared with 20,000 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 GLC cars for sale · 2020 Mercedes-Benz GLC price guide

Vehicle photos

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