Genesis G80 vs Mercedes-Benz S-Class

What's the difference?

VS
Genesis G80
Genesis G80

$104,128 - $156,418

2026 price

Mercedes-Benz S-Class
Mercedes-Benz S-Class

2021 price

Summary

2026 Genesis G80
2021 Mercedes-Benz S-Class
Safety Rating

Engine Type

Twin Turbo V6, 3.0L
Fuel Type
-

Premium Unleaded Petrol
Fuel Efficiency
-

8.4L/100km (combined)
Seating
-

5
Dislikes
  • Thirsty V6 (hybrid would be nice)
  • Not as sporty as SL name implies - but not bad
  • Not as luxurious as SL name implies - but not bad

  • Price of entry prohibitive for most
  • 3D instrumentation can make you woozy
  • A tad conservative in design
2026 Genesis G80 Summary

Remember those extra-long Australian luxury sedans like the Ford Fairlane and Holden Statesman/Caprice?

The patriotic choice in an era where that mattered and further protected by tariffs on imports that made them barely any more expensive than a base mid-sized Euro like a BMW 318i, they dominated the top end of the market with their sheer size outside, vast space inside and big-six or V8 grunt.

Like they used to say, there is no substitute for cubic inches.

Well, the spirit of these beloved local social-climbing classics lives on in just one modern car in 2025, the Genesis G80. Over three generations since 2008, it has been Hyundai’s tilt at the premium establishment, in much the same way as the Fairlane and Caprice were, and Toyota’s Lexus luxury brand still is.

We take a dive into the latest petrol-powered range-topper version, the 3.5T All-Wheel Drive (AWD) Sport Luxury (SL), which gives off more than its fair share of vintage HSV Grange vibes.

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2021 Mercedes-Benz S-Class Summary

It's only in the running for the title of world's best luxury car. No biggie here, then.

Like Rolex and Concorde, S-Class has become a byword for ultimate, and deserved or not, the Mercedes-Benz defines its segment despite the best efforts of the BMW 7 Series, Audi A8, Lexus LS and (sadly now-defunct) Jaguar XJ, as well as pointing the way forward with new technologies that eventually trickle down to more proletarian models.

Replacing the half-million selling W222 unveiled in 2013, the W223 is the latest in a long line since the first W187 Ponton debuted in 1951, and includes the famous ‘Finnies' and Stroke-8 models that followed immediately afterwards, but it is the 1972 W116 that really set the template.

Now, seven generations in, the 2021 S-Class is all-new again, with progressive safety and interior features that should help keep it Australia's bestselling full-sized upper-luxury sedan.

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Deep dive comparison

2026 Genesis G80 2021 Mercedes-Benz S-Class

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