Skip advert
Advertisement

BMW M135i vs Mercedes A45 AMG review

A45 AMG takes on 316bhp BMW
M135i in a fearsome battle of the hyper hatches. Which is our favourite?

Until recently, premium brands have steered clear of the scrap for hot hatch honours. Then late last year, BMW pulled the wraps off its storming M135i pocket rocket, which came with a stunning straight-six engine and entertaining rear-wheel-drive handling.

Scroll to bottom for video

Now Mercedes has joined the fray, with its wild A45 AMG. Based on the A-Class hatch, it packs a 355bhp 2.0-litre turbo engine, four-wheel drive and a heavily uprated chassis. It’s also brimming with all the engineering know-how of the company’s AMG tuning division, which is responsible for a host of current high-performance greats, including the C63, E63 and SLS supercar.

Advertisement - Article continues below

Yet this race-bred pedigree comes at a price, with the AMG costing £5,250 more than the BMW, at £37,845. And while the M135i has less power and two-wheel drive, it matches the A45’s monstrous torque output and serves up huge driver thrills. Which will win the day here?

Verdict

Both models here deliver the sort of performance that’s more in keeping with thoroughbred sports cars than traditional hot hatches. Factor in their compact dimensions, and this dynamic duo are among the fastest point-to-point cars money can buy.

But which one do we prefer? For visual drama, the muscular Mercedes is hard to beat, while its confidence-inspiring four-wheel- drive transmission lets you access the explosive turn of speed come rain or shine.

It also boasts loads of grip, naturally weighted steering and impressive body control. So it’s a shame the muscular engine sounds so muted and the handling feels a little inert.

That’s not a criticism you can aim at the engaging BMW. With its tuneful straight-six engine and agile rear-wheel-drive handling, the M135i never fails to raise a smile. Yet it combines these driving thrills with refinement and comfort. And as with all versions of the 1 Series, you get a beautifully finished cabin, plus enough space for most growing families.

Yes, it looks a little bland compared to the AMG, but some buyers will appreciate its more understated approach to speed. And then there’s the price. At £32,595, it undercuts the Merc by more than £5,000. As a result it takes a narrow, but well deserved win.

Skip advert
Advertisement

New & used car deals

Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,245Avg. savings £2,053 off RRP*Used from £13,934
Skoda Kodiaq

Skoda Kodiaq

RRP £39,025Avg. savings £3,528 off RRP*Used from £9,444
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £6,322 off RRP*Used from £10,649
Audi A3

Audi A3

RRP £26,295Avg. savings £4,213 off RRP*Used from £10,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Insurers still refuse to cover some Chinese cars despite booming sales
Skywell BE11 - front action

Insurers still refuse to cover some Chinese cars despite booming sales

Insurance companies seem to be struggling to keep pace with the wave of new cars coming from China, and buyers are literally paying the price
News
26 Feb 2026
New Land Rover Defender Sport: baby SUV will be boxy and electric
New baby Land Rover Defender render - watermarked

New Land Rover Defender Sport: baby SUV will be boxy and electric

The new Land Rover Defender Sport will sit below the existing Defender in both size and price, and our exclusive image previews how it could look
News
23 Feb 2026
Car Deal of the Day: Top-selling Ford Puma for a rock-bottom £166 a month
Ford Puma - front corner left turn

Car Deal of the Day: Top-selling Ford Puma for a rock-bottom £166 a month

It’s been a while since the petrol Puma has been cheaper than its electric sister. It’s our Deal of the Day for 24 February.
News
24 Feb 2026