Lexus LS500H vs Porsche Cayenne

What's the difference?

Almost 30 years after Lexus launched its original LS flagship sedan, the fifth generation of the car has arrived in Australia in what appears to be the brand’s never-ending battle to hunt down and beat Mercedes-Benz, BMW and Audi at their own game.

In some markets it looks as though Lexus is making headway. In the United States last year Mercedes-Benz was the best-selling luxury brand, followed by BMW and then Lexus. To give you even more insight, 50 per cent of all Lexus sales globally are in the US.

The story is different in Australia, with Lexus hardly a threat to the big three Germans, selling about a third less each month.

The Lexus LS is the Japanese prestige brand’s flagship and comes with a price that nudges up against formidable rivals. There’s the Mercedes-Benz S-Class, BMW 7 Series and Audi’s A8. Only the best cars from a few of the best brands in the world – no pressure, Lexus.

This may even be a reason to buy one – in that it’s not one of the traditional three. You could see Lexus as the popular underdog that in some ways does a better job than the usual suspects. A people’s favourite perhaps?

Just look at how often it’s mentioned in songs. According to lyrics.com.au the word Lexus has been used in 873 songs. Meanwhile Mercedes Benz appears in 500, Audi in 402 and BMW in 307.

With all this in mind we headed to the Australian launch to drive the LS 500 and its hybrid twin the 500h.

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…