BMW M Models vs Audi S6
What's the difference?

BMW M Models

$114,900 - $299,900

2025 price

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Audi S6

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2020 price

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Aston Martin Vanquish

Lamborghini Aventador

Maserati Quattroporte

Mercedes-Benz A-Class

Mercedes-Benz A35

Mercedes-Benz AMG GT

Mercedes-Benz C-Class

Mercedes-Benz C43

Mercedes-Benz C63

Mercedes-Benz CLA

Mercedes-Benz CLA-Class

Mercedes-Benz CLS-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQS

Mercedes-Benz S-Class

Mercedes-Benz SL-Class

Summary

2025 BMW M Models

2020 Audi S6

By Andrew Chesterton

By Justin Hilliard

Safety Rating

Engine Type

Turbo 6, 3.0L

Twin Turbo V6, 2.9L

Fuel Type

Premium Unleaded Petrol

Premium Unleaded/Electric

Fuel Efficiency

10.2L/100km (combined)

8.4L/100km (combined)

Seating

Likes

Brutal performance
Tons of kerb appeal
No-compromise approach to speed

Executive style
Improved value
Boy-racer performance

Dislikes

Uncomfortable in the city
Hard-edged seats a necessary evil
Fuel bill will be sizeable

Not SUV practical
A touch thirsty
Substandard warranty

2025 BMW M Models Summary

To say the BMW M4 CS is a hot ticket in Australia is something of an understatement.

Consider this. There is an even more expensive one, the M4 CS Edition VR46 – at a cool $346,900 – and it sold out in less than an hour. Now, granted, Australia only got four examples, but still, demand was running hot.

That car makes this one, the regular M4 CS, seem like an absolute steal. It's only $254,900 (yes, the word 'only' is doing a lot of heavy lifting in that sentence), and it shares the same upgrades, and makes the same monstrous power, as the VR46 – for Valentino Rossi’s 46th birthday – only it does it for around $100K less.

See? A bargain. At least, that's how I'd be justifying it to myself if I had a quarter of a million burning a hole in my pocket.

So, this or a Porsche 911? Read on.

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2020 Audi S6 Summary

Most buyers don’t care for sedans these days, but those in the premium market are still spoilt for choice, with new model after new model being launched.

The latest on offer is the new Audi S6, which once again attempts to mix executive style with boy-racer performance.

With its predecessor’s 4.0-litre twin-turbo V8 succeeded by an engine that is 1.1 litres and two cylinders short, does it still serve up enough bang for your back?

Of course, the only way to find out is to put the new S6 sedan to test, so that’s exactly what we did. Read on.

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Deep dive comparison

2025 BMW M Models 2020 Audi S6

Verdict

Brutal, bruising and utterly brilliant, the M4 CS will be an acquired taste due to its no-compromise approach, but those willing to take the leap will find a performance car like few others at their disposal.

Verdict

We adore the new S6 sedan. It looks great, feels comfortable and goes like stink all at the same time. What’s not to like?

It also helps that it is relatively good value, safe and practical by large-sedan standards, so it’s a bit of a no-brainer.

But will buyers be quick to dismiss the new S6 sedan because it’s not a more practical SUV? Time will tell, but we hope not.

Does the new Audi S6 sedan represent the best mix of executive style and boy-racer performance? Tell us what you think in the comments below.

BMW M Models vs Audi S6 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW M Models vs Audi S6
What's the difference?