Mercedes-Benz GLA35 vs Mercedes-Benz GLA250

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.

Buuuuuuuur, parp, buuuuuuuuuuuur, parp. Anyone who knows anything about cars immediately recognises the sound of a 45-engined A-class derivative. It's the sound you hear in a tunnel as old mate blasts past with a giant carbon-fibre wing atop his hatchback. It's the sound you hear at 3:00am on a summer morning (if your suburb has no speed bumps, of course).

In short, that sound means big power from a 2.0-litre turbocharged engine, a seven-speed transmission, and a bunch of Germans who clearly had a sense of humour in charge of tuning the exhaust note.

Sure, the GLA compact SUV is probably a slightly unexpected source of all that noise. But then, Merc's Ingolstadt rivals stuffed Audi's stupendous five-cylinder engine into a Q3 to make the hugely improbable RSQ3, so why not do the same with their skirts-lifted A-Class?

To be honest, my expectations for this car were low. So do I owe Mercedes a grovelling apology? Or can I still claim the moral high ground after a week of GLA 45 "ownership"?