BMW M135i vs Mercedes-Benz A45

What's the difference?

When the iPhone first appeared just over a decade ago, I can remember thinking a phone without buttons would be a giant pain in the neck. Until I used one, and now the idea of a keypad phone sounds akin to starting a car with a crank handle.

The new 1 Series is likely to offer most buyers a similar revelation, with its move from the BMW-traditional rear-drive layout to more conventional front and all-wheel drive. That is assuming you gave a damn in the first place, as I suspect it’s only hardcore BMW traditionalists that care about a rear-drive premium hatchback in 2020.

And that’s not who is buying the 1 Series, with the Bavarian brand’s cheapest model intended to appeal to younger buyers who are more likely to care about connectivity, practicality and personalisation options than the excitement of losing grip from the rear. It certainly hasn’t stopped plenty of people from buying 1 Series-rivalling A-Class and A3s from Mercedes-Benz and Audi over the years.

Driving the first-generation Mercedes-AMG A 45 in 2013 was an intense, noisy, brutal experience and I loved every bone-shaking, ear-bleeding moment of it.

But I’m older now, married and have children, and while this is also an intense, noisy, brutal experience I now prefer cars to be less like a 24-hour, seven-day-a-week continuous cage fight. So, I was surprised to find the new-generation A45 S has grown up a bit, too.

So, like me, is the new Mercedes-AMG A 45 S 4Matic+ not as quick as it used to be, and does it have a dad bod, now, too? Far from it. If anything, it’s matured into the serious weapon of a hot hatch it was always supposed to be.