2020 Mercedes-Benz SL 3.0 SL400 V6 Grand Edition Premium

Overview

• Make: Mercedes-Benz
• Model: SL
• Trim: Grand Edition Premium
• Version: 3.0 SL400 V6 Grand Edition Premium G-Tronic+ RWD Euro 6 (s/s) 2dr (362 bhp)
• Year: 2020
• Mileage: 22,330 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.0 litres, 362 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 216 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz SL Grand Edition Premium is advertised with 22,330 miles on the clock. Priced at £43,000, it is advertised £737 below the AskCar estimate of £43,737. To work out the AskCar estimate, we analyse UK dealer adverts for 378 Mercedes-Benz SL cars across different ages and specifications. It first appeared in our advert records 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Smiths Vauxhall Peterborough in Bretton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £737 (1%) under the AskCar estimate of £43,737.

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

It draws on 378 priced Mercedes-Benz SL adverts across different ages and specifications, as of 12 November 2026.

Time on sale

AskCar first saw this 2020 Mercedes-Benz SL advertised 1 day ago.

Price history

AskCar first saw this advert on 11 November 2026 at £43,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 12 November 2026: valid until 22 April 2027.

It has had 4 MOTs. The latest, on 1 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 19,626 miles, which matches the advertised 22,330 miles.

Similar cars

1 other 2020 Mercedes-Benz SL Grand Edition Premium 3.0 petrol automatic convertible is for sale at UK dealers, as of 12 November 2026.

The closest to this car in mileage:

• 2020 Mercedes-Benz SL Grand Edition Premium, 3.0 petrol convertible, blue. Mileage: 24,254 miles. Price: £43,950, £950 more than this car. Dealer: Sytner Group Mercedes-Benz of West London in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2020-b5b31e93d0e4