1999 Mercedes-Benz SL 3.2 SL320
Price: £26,990. Above the going rate: £11,564 (74%) over the AskCar estimate of £15,426, our expected asking price for this car from its model, age, mileage and specification, drawing on 371 priced Mercedes-Benz SL adverts on AskCar as of 7 November 2026.
AskCar lists 467 used Mercedes-Benz SL from 341 UK dealerships, as of 7 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Version: 3.2 SL320 Auto RWD 2dr
- Year: 1999
- Mileage: 69,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors
- Engine: 3.2 litres
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Red
About this car
The advertised mileage for this 1999 Mercedes-Benz SL is 69,000 miles. Its asking price of £26,990 is £11,564 above the AskCar estimate of £15,426. The AskCar estimate uses 371 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 1 day ago. The advertised mileage is lower than the latest MOT reading of 69,755 miles. Ask the dealer to explain. Its recorded MOT is valid until 28 April 2027. It is advertised by Karmann Classics in Guildford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Above the going rate: £11,564 (74%) over the AskCar estimate of £15,426.
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 371 priced Mercedes-Benz SL adverts across different ages and specifications, as of 7 November 2026.
Time on sale
AskCar first saw this 1999 Mercedes-Benz SL advertised 1 day ago.
Price history
AskCar first saw this advert on 6 November 2026 at £26,990. 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 7 November 2026: valid until 28 April 2027.
It has had 25 MOTs. The latest, on 30 March 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 69,755 miles. The advert says 69,000 miles, fewer than the MOT record, so ask the dealer which is right.
Advertised mileage is about 5,000 miles lower 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
13 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.