Mercedes-Benz S400 vs Porsche 911

What's the difference?

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Mercedes-Benz S400
Mercedes-Benz S400

2018 price

Porsche 911
Porsche 911

$299,990 - $548,888

2025 price

Summary

2018 Mercedes-Benz S400
2025 Porsche 911
Safety Rating

Engine Type

Flat Twin Turbo 6, 3.6L
Fuel Type

Premium Unleaded/Electric
Fuel Efficiency

11.0L/100km (combined)
Seating

2
Dislikes
  • Some terseness from run-flat tyres
  • Controls could be simpler
  • Non L models not that spacious in the back

  • Potent power and can feel less enthralling than ICE
  • Supercar-level pricing is getting out of control
  • Road noise slightly impacts daily drivability
2018 Mercedes-Benz S400 Summary

Imagine a car that can pretty much drive itself, if you let it. And it’ll do that while you get a massage, pump some Beyonce, and enjoy the fragrance of a field full of flowers… And then, it can teach you to do stretches and exercises in the driver’s seat.

It may sound like fictional fiction, but it’s factual fact. And it’s the Mercedes-Benz S-Class 2018 model, which has taken the so-called ‘wellbeing’ of the driver to a new level.

The facelifted model has seen plenty of styling changes and some tech upgrades, and while making the flagship car in a particular brand’s line-up is often a task fraught with issues, the German company’s big, expensive, luxurious, limousine is undoubtedly a more thoughtful car for 2018.

But just remember, its predecessor was considered - at least for a little while - as the best car in the world by some automotive journalists. 

Now Mercedes-Benz has updated it, and it reckons it’s better than before, bringing a bunch of new technology, new engines, a reworked model range and, perhaps not essentially, but still pleasantly, lower pricing.

Read on to see how Beyonce factors into the equation.

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2025 Porsche 911 Summary

The icon is electric. Well, kind of.

This is the new Porsche 911 Carrera GTS, which ushers in a facelift for the brand’s most famous model — and it’s one that introduces a pretty major change.

That faint whistling you hear is most likely the distant wails of the Porsche purists, because this new 911 is now a hybrid.

Yes, the Carrera GTS features Porsche’s clever T-Hybrid engine, which is the brand’s take on electrifying the world’s most famous sports car.

It’s faster than the model it replaces, but it also fundamentally alters the formula that has made the 911 the world’s most iconic sports car.

The question is, does it alter it for the better?

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Deep dive comparison

2018 Mercedes-Benz S400 2025 Porsche 911

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