Head to head
Mercedes-Benz S-Class Saloon Long vs Mercedes-Benz SLK-Class
The Mercedes-Benz S-Class Saloon Long is a long-wheelbase flagship luxury saloon. The Mercedes-Benz SLK-Class is a two-seat folding hard-top roadster.
Last reviewed 13 September 2026
Specifications side by side
| Mercedes-Benz S-Class Saloon Long | Mercedes-Benz SLK-Class | |
|---|---|---|
| Boot capacity | 515-535 litres (combustion engines) | 10.1cu ft roof up, 6.4cu ft roof down |
| Length | 5,304mm | - |
| Width | 1,921mm (excl. mirrors) | - |
| Seats | 5 | - |
| Engine options | S350d L 4MATIC diesel, S450e L / S580e 4MATIC L plug-in hybrid, S500 L 4MATIC petrol | - |
| SLK300 power | - | 241hp |
| SLK350 power | - | 302hp |
| AMG SLK55 power | - | 415hp |
| 0-60mph | - | 5.8 seconds (SLK300) to 4.5 seconds (AMG SLK55) |
Sources: Mercedes-Benz S-Class Saloon Long, Mercedes-Benz SLK-Class. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the S-Class Saloon Long if...
Mercedes' flagship saloon in long-wheelbase form, the standard car for UK chauffeur firms rather than self-drive hire. The extended wheelbase adds rear legroom rather than luggage space, which stays much the same as the standard car.
Listed by
- Anytime Chauffeurs - London
Buy or hire the SLK-Class if...
A compact two-seat roadster with a folding metal hard-top, popular on the used and specialist rental market as an affordable sunny-day convertible. Later replaced by the SLC.
Listed by
Common questions
What is the difference between the Mercedes-Benz S-Class Saloon Long and the Mercedes-Benz SLK-Class?
The Mercedes-Benz S-Class Saloon Long is a long-wheelbase flagship luxury saloon; the Mercedes-Benz SLK-Class is a two-seat folding hard-top roadster.
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