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BMW M440I vs Mercedes-Benz CLA45

What's the difference?


$85,990 - $88,756

2021 price

Mercedes-Benz CLA45
Mercedes-Benz CLA45

$87,888 - $99,999

2020 price


2021 BMW M440I
2020 Mercedes-Benz CLA45
Safety Rating

Engine Type
Turbo 6, 3.0L

Twin Turbo 4, 2.0L
Fuel Type
Premium Unleaded Petrol

Premium Unleaded Petrol
Fuel Efficiency
7.8L/100km (combined)

8.9L/100km (combined)

  • Squeezy rear seats
  • 420i/430i starts to get thrashy in high revs
  • Adaptive cruise should be standard

  • Questionable value
  • Some cheap switchgear
  • Next to no rear headroom
2021 BMW M440I Summary

When BMW’s first-generation 4 Series landed in 2013, it looked and drove like little more than a 3 Series sedan minus the two rear doors, and that’s because it was.

For the second-generation version though, BMW have decided to try its best to differentiate the 4 from the 3 Series, adding a unique front end and slight mechanical tweaks.

Sure, the looks might not be to everyone’s taste, but surely BMW’s renowned driver-focused dynamics will be enough for the 4 Series to carve out its niche in the premium sports coupe space … right?

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2020 Mercedes-Benz CLA45 Summary

Mercedes-AMG left tongues wagging when it unleashed the original 45 series onto the automotive world seven years ago. It took many forms, including the pioneering A 45 hatch and the unconventional GLA 45 SUV.

That said, we’re here to talk about the third member of that family, the CLA 45 sedan (or coupe if Mercedes-AMG is paying your wage). And no, we don’t mean the old model.

Indeed, the second-generation CLA 45 is here, and it’s packing the most potent series-production four-cylinder engine to date – a title Mercedes-AMG has, of course, held before.

So, is the new CLA 45 a big-step up over its standard-setting predecessor? While it certainly helps that it is now only available in hard-hitting S form in Australia, the only way to really find out is to put it to test. Let’s go!

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Deep dive comparison

2021 BMW M440I 2020 Mercedes-Benz CLA45

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