Porsche Cayenne vs Mercedes-Benz AMG GT

What's the difference?

VS
Porsche Cayenne
Porsche Cayenne

$144,900 - $376,200

2026 price

Mercedes-Benz AMG GT
Mercedes-Benz AMG GT

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2025 price

Summary

2026 Porsche Cayenne
2025 Mercedes-Benz AMG GT
Safety Rating

Electric motor type
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Bi Turbo V8, 4.0L
Vehicle type
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Premium Unleaded Petrol
Electric range
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14.6L/100km (combined)
Energy consumption
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Battery capacity
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Seating
5

4
Dislikes
  • No new petrol or hybrid variant (yet)
  • Coupe bodystyle loses practicality
  • Off-road bodykit looks awkward

  • Firm ride
  • Road/tyre noise intrusion
  • No spare wheel
2026 Porsche Cayenne Summary

No good deed goes unpunished.

Porsche, a brand synonymous with petrol-guzzling sports cars, tried to do the right thing and make a nearly wholesale switch to electric vehicles by the end of the decade. The problem was, while this made governments happy, it didn’t sit well with customers.

Porsche’s all-electric Macan is enduring a torrid 2026, with sales down over 75 per cent now that all the petrol-engined options are gone. 

But that hasn’t stopped the German brand trying again with an all-electric Cayenne. However, there are some key differences that mean this latest electric Porsche won’t suffer the same fate.

Namely, the petrol-powered and hybrid versions aren’t going anywhere and new versions are rumoured to be coming in the not-too-distant future.

For now though, we have this all-new electric Cayenne - so how does it stack up to its predecessors as the sports car brand’s big SUV?  And will it be second time lucky for Porsche’s electric transition? Based on two rather unorthodox days of test driving, the verdict might surprise you…

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2025 Mercedes-Benz AMG GT Summary

Once upon a time, people would dream about owning a Mercedes-Benz 450SLC – the C107 sports/luxury coupe flagship of the 1970s.

Sexy, stylish, secure and incredibly solid, it embodied the brand’s ‘Engineered Like No Other Car' mantra of the era.

Today’s all-new, second-generation, C192 AMG GT Coupe is something of an indirect descendant of this sort of thinking, changing tack from its supercar-esque 2014 C190 predecessor, with more space, more seats, more sensibility and, conversely, even more steak and sizzle from its glorious V8.

A modern-day SLC? The Porsche 911, Aston Martin DB12, Maserati GranTurismo and Bentley Continental GT’s worst nightmare? Or something else entirely?

These questions and more are answered below.

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Deep dive comparison

2026 Porsche Cayenne 2025 Mercedes-Benz AMG GT

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