Mercedes-Benz GLA35 vs Mercedes-Benz GLC-Class

What's the difference?

Fast SUVs, we can't get enough of them. The fastest of the small SUV set was the previous-generation GLA 45, a high-riding version of AMG's bonkers A-Class hatchback. Tons of power, more ride height (and, by extension, a better ride) and an obnoxious soundtrack.

It had its problems - the GLA was literally just a jacked up A-Class, so it had tight rear legroom and a chintzy interior but for me it was the pick of the two cars because it didn't rearrange your spine and, perversely, was more fun to drive.

This year, we got the second generation GLA which built on the success of the first GLA. While, yes, it is a jacked-up A-Class, it is much more of an actual SUV and with it comes more space, more of its own personality and, like its hatchback sibling, there's a new high-performance version, the GLA 35 to sit under the even more bonkers GLA 45.

Let’s make one thing clear from the very beginning - this new Mercedes-AMG GLC63 S E Performance is technically superior to the model it replaces. Whether it’s actually better or not, is the real question at the heart of the matter.

Why? Because, like the C63 sedan stablemate, AMG has opted to replace the previous model’s 4.0-litre twin-turbo V8 engine with a new 2.0-litre four-cylinder hybrid powertrain. It was a move brought about in part because of increasingly stricter emissions standards in Europe, but also ties-in with the German firm’s success in modern Formula One racing.

While the new hybrid system offers more power, more torque and better fuel economy, as the lukewarm response to the C63 has demonstrated, the hard reality for AMG is that its buyers associate it with V8 and even V12 engines. That emotional pull is hard to replace with logic, even if the new model offers technical superiority.

But how does the new powertrain suit the GLC63 - is it just technically better or is it holistically improved?