BMW M Models vs BMW Alpina B5
What's the difference?

BMW M Models

$114,900 - $299,900

2025 price

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BMW Alpina B5

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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 BMW Alpina B5

By Andrew Chesterton

By Laura Berry

Safety Rating

Engine Type

Turbo 6, 3.0L

Twin Turbo V8, 4.4L

Fuel Type

Premium Unleaded Petrol

Fuel Efficiency

10.2L/100km (combined)

10.9L/100km (combined)

Seating

Likes

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

Fast
Comfortable
Luxurious

Dislikes

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

Cleaning the wheels
Room and storage space could be better
Not the most engaging car to drive

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 BMW Alpina B5 Summary

The BMW Alpina B5 Bi-Turbo is not actually a BMW. Not according to the German Federal Motor Transport Authority, at least.

Nope, the modifications applied by tuning house Alpina to the 5 Series are deemed so significant that if you open the bonnet and look inside the engine bay, you'll see that the BMW VIN has been struck through twice and an Alpina vehicle number stamped underneath it.

The B5 is not the first model to be recognised in this way, either; the German government has recognised Alpina as a seperate car manufacturer since 1983.

The B5 has other ‘B' siblings, too. There's the B3 S Bi-Turbo, which is based on the BMW 3 Series, the B4 S Bi-Turbo (the BMW 4 Series) and the B7 Bi-Turbo (I don't need to tell you what this is based on, right?) which I've reviewed, too.

So just what has Alpina done to this unsuspecting BMW 5 Series? Is it really worth the extra money? How does the B5 compare to an M5? Could it actually be superior? And did they really take the speed limiter off to let it warp-speed to beyond 300km/h?

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Deep dive comparison

2025 BMW M Models 2020 BMW Alpina B5

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

The Alpina B5 is a special car – more special than most people will ever give you credit for if you own one. Those that do know what an Alpina is will let you know; people will cross dangerously busy streets to talk to you about your car. Insanely fast, almost incomprehensibly comfortable and effortlessly powerful to drive.

BMW M Models vs BMW Alpina B5 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW M Models vs BMW Alpina B5
What's the difference?