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Mercedes-Benz S-Class vs Porsche Cayenne

The Mercedes-Benz S-Class is a full-size luxury saloon. The Porsche Cayenne is a performance suv.

Last reviewed 13 September 2026

Specifications side by side

Mercedes-Benz S-ClassPorsche Cayenne
Seats54-5
S 500 L 4MATIC power330kW + 17kW (449hp + 23HP mild hybrid)-
S 350 d L 4MATIC power230kW + 17kW (313hp + 23HP mild hybrid)-
Boot volume515-535 litres (petrol/diesel models)-
Engine-3.0 litre petrol 353bhp, up to 4.0 litre GTS 500bhp
0-60mph-4.4-5.7 seconds depending on engine
Boot space-592-772 litres (seats up), 1,502-1,710 litres (seats down)

Sources: Mercedes-Benz S-Class, Porsche Cayenne. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the S-Class if...

Mercedes-Benz's flagship saloon and the default choice for UK chauffeur and executive car hire, valued for its ride comfort and rear-seat space. Offered with diesel, petrol and plug-in hybrid power.

Full S-Class specifications →

Buy or hire the Cayenne if...

A performance SUV hired by drivers wanting sports car pace and handling combined with practical space and ride height, rather than a low-slung sports car.

Listed by

Full Cayenne specifications →

Common questions

What is the difference between the Mercedes-Benz S-Class and the Porsche Cayenne?

The Mercedes-Benz S-Class is a full-size luxury saloon; the Porsche Cayenne is a performance SUV.

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