Porsche Cayenne vs Mercedes-Benz C300

What's the difference?

VS
Porsche Cayenne
Porsche Cayenne

$144,900 - $376,200

2026 price

Mercedes-Benz C300
Mercedes-Benz C300

$47,990 - $74,800

2022 price

Summary

2026 Porsche Cayenne
2022 Mercedes-Benz C300
Safety Rating

Electric motor type
—

Turbo 4, 2.0L
Vehicle type
—

Unleaded Petrol
Electric range
—

7.0L/100km (combined)
Energy consumption
—

Battery capacity
—

Seating
5

5
Dislikes
  • No new petrol or hybrid variant (yet)
  • Coupe bodystyle loses practicality
  • Off-road bodykit looks awkward

  • Huge price hikes
  • C200 could use more muscle
  • Dull steering feel
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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2022 Mercedes-Benz C300 Summary

Australia's relationship status with the Mercedes C-Class has long been… complicated.

Over 40 years and five generations, the German midsized luxury sedan has been a paragon of efficiency and safety on one hand, but on the other, well, the quality and ride comfort haven't lived up to brand expectations.

Now the completely redesigned version has landed in Australia, with shrunken S-Class limousine styling to take on not only the BMW 3 Series, Audi A4 and Genesis G70, but rivals as disparate as the Hyundai Ioniq 5 and Tesla Model 3.

The question is? Is this latest, sixth-generation, new-from-the-ground-up C-Class good enough to take on all those and more? Let's find out.

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Deep dive comparison

2026 Porsche Cayenne 2022 Mercedes-Benz C300

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