Mercedes-Benz CLA45 vs Audi RS3

What's the difference?

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!

Five-cylinder fury is still kicking!

Audi has just launched the mid-life updated version of its RS3 hatch and sedan in Australia.

With new looks inside and out, the German carmaker has also made a number of subtle tweaks under the skin via software updates. Thankfully, however, the five-cylinder beast lurking under the bonnet remains untouched.

As the viability of pure internal combustion engines in the hot hatch segment dwindles in the age of ever-tightening emissions regulations, will this be the last hurrah for the five-banger RS3?

Read along to see how this latest version stacks up.