1999 Mercedes-Benz SL 2.8 SL280
Price: £19,990. Above the going rate: £4,992 (33%) over the AskCar estimate of £14,998, our expected asking price for this car from its model, age, mileage and specification, drawing on 370 priced Mercedes-Benz SL adverts on AskCar as of 9 November 2026.
AskCar lists 461 used Mercedes-Benz SL from 341 UK dealerships, as of 9 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Version: 2.8 SL280 Auto RWD 2dr (204 bhp)
- Year: 1999
- Mileage: 78,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors
- Engine: 2.8 litres, 204 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 270 g/km
About this car
The advertised mileage for this 1999 Mercedes-Benz SL is 78,000 miles. Priced at £19,990, it is advertised £4,992 above the AskCar estimate of £14,998. The AskCar estimate uses 370 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 90 days. The advertised mileage is lower than the latest MOT reading of 79,760 miles. Ask the dealer to explain. The latest recorded MOT expiry date is 16 November 2023, which has passed. Confirm its status with the dealer. It is for sale at Karmann Classics in Guildford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 9 November 2026.
Price
Above the going rate: £4,992 (33%) over the AskCar estimate of £14,998.
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 370 priced Mercedes-Benz SL adverts across different ages and specifications, as of 9 November 2026.
Time on sale
This 1999 Mercedes-Benz SL has been on sale for at least 90 days.
Price history
AskCar first saw this advert on 11 August 2026 at £19,990. 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 9 November 2026: the latest record we hold ran out on 16 November 2023; ask the dealer for the current MOT.
It has had 19 MOTs. The latest, on 5 November 2022, passed.
There were no advisories at the latest test.
Mileage at that test: 79,760 miles. The advert says 78,000 miles, fewer than the MOT record, so ask the dealer which is right.
Advertised mileage is about 4,000 miles higher than the median mileage of a 1999 Mercedes-Benz SL on AskCar.
Browse all Mercedes-Benz SL cars for sale · 1999 Mercedes-Benz SL price guide
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Photos
29 photos of this car are on its AskCar page.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.