GetBrent

Head to head

Mercedes-Benz S-Class Saloon Long vs Poseidon King Fisher

The Poseidon King Fisher is 40cm (1.5ft) longer.

Last reviewed 13 September 2026

Key differences

Specifications side by side

Mercedes-Benz S-Class Saloon LongPoseidon King Fisher
Length5,304mm5.70m (570) or 6.50m (650)
Width1,921mm (excl. mirrors)-
Boot capacity515-535 litres (combustion engines)-
Seats5-
Engine optionsS350d L 4MATIC diesel, S450e L / S580e 4MATIC L plug-in hybrid, S500 L 4MATIC petrol-
Beam-2.40m (570) or 2.45m (650)
Weight-900kg (570) or 1,250kg (650)
Max engine power-115hp (570) or 250hp (650)
Passengers-7 (570) or 8 (650)
Fuel tank-100 litres (570) or 150 litres (650)

Sources: Mercedes-Benz S-Class Saloon Long, Poseidon King Fisher. 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

Full S-Class Saloon Long specifications →

Buy or hire the King Fisher if...

  • you want one that is 40cm (1.5ft) longer

A Greek-built open day boat sold in the UK in two hull lengths, aimed at sea fishing and family boating rather than watersports. Its modest beam and outboard power suit coastal charter and self-drive hire rather than offshore cruising.

Listed by

Full King Fisher specifications →

Common questions

What is the difference between the Mercedes-Benz S-Class Saloon Long and the Poseidon King Fisher?

The Poseidon King Fisher is 40cm (1.5ft) longer. The Mercedes-Benz S-Class Saloon Long is a long-wheelbase flagship luxury saloon; the Poseidon King Fisher is a open sports and fishing boat, sold in two lengths.

GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.