MERCEDES-BENZ SL CLASS (2016-21) SL400 2DR ROADSTER 3.0 V6 367 SS EU6 AMG LINE PREMIUM 9G-T+ AUTO

Buyer's Guide & Data from our Checks
The Mercedes-Benz SL Class (2016-21), specifically the SL400 2DR Roadster with a 3.0 V6 engine and 367 horsepower, is a luxurious and sporty vehicle that stands out in the UK's premium convertible market. Known for its sleek design and high-quality finishes, this model appeals to buyers seeking a stylish open-top experience with comfort and performance. It is commonly used for leisure drives, weekend trips, and cruising, making it ideal for those who want a combination of elegance and driving pleasure.
Data from mycarcheck.com reveals this model has been looked up 268 times across 108 different vehicles, indicating a good level of interest and a reasonably broad ownership history. The average recorded mileage is about 19,000 miles, with most owners having held the car for close to one and a half years. The typical value for a private sale is around £38,800, reflecting its premium status. This model’s reputable reliability and distinctive AMG Line features, combined with fuel efficiency for its class, make it a popular choice among luxury car enthusiasts.
Compared to rivals, the Mercedes SL400 Roadster is highly regarded for its refined driving experience, impressive looks, and advanced features like the 9G-TRONIC gearbox and premium finishes. It’s best suited to those who value style, performance, and a prestigious badge, rather than everyday practicality. Its unique combination of luxury and sportiness makes the SL400 a standout in the luxury convertible class, appealing to both first-time buyers and repeat Mercedes-Benz owners.
Don’t risk buying a Mercedes SL convertible without checking for hidden finance, write-offs or mileage discrepancies. Enter the reg now and see if anything might be ticking time bombs before it’s too late.
Key Findings
The following statistics are drawn from our checks of 108 different vehicles, run between February 24th 2021 and August 31st 2026. These real-world insights provide context for this vehicle's place in the market, as well as its typical usage.
268
Lookups
Lookups
8
Hidden Histories
Hidden Histories
23k
Average Mileage
Average Mileage
£38,800
Average Valuation
Average Valuation












