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2020 BMW M135i xDrive review

By Trent Giunco, 05 Dec 2019 Reviews

BMW M135i xDrive review

Bavaria bows to market pressure for its hot hatch contender

Overall Rating

Lamborghini Urus SUV

5 0 5

Plus & Minus

    1. Plus Increased interior space; upmarket cabin ambience; standard equipment

    2. Minus Loss of rear-drive chassis and B58 engine; no adaptive dampers with 19-inch wheels

The Wheels Verdict: It was a long time coming, but we knew the changes had to be made, and now the M135i has dropped two cylinders and gained drive to the front wheels. Luckily, the news is nowhere near as melancholy as first thought. Ultimately you can wax lyrical about the new F40-generation M135i – it’s just not as easy to do so in comparison with its hard-to-forget predecessor.


Like its competition, BMW’s hot hatch is now powered by a four-cylinder turbo engine and drives all four wheels. It sits on the UKL2 platform (shared with Mini), which has liberated interior space and added extra cargo capacity. Essentially, it’s the $63,990 Bimmer primed to take on the likes of the Mercedes-AMG A35, Audi S3 and Volkswagen Golf R.


This is our first chance to sample the M135i on Aussie roads – which are vastly different to the smooth country roads and autobahns of the international launch route in Bavaria. It’s a bold move for BMW to step away from its rear-drive, inline-six roots, so we’re keen to see if it works down under.


Niches are rife in the automotive landscape. They tend to generate specific cars that appeal to certain people – and those buyers usually become dedicated enthusiasts. The problem is niches generally don’t garner volume sales. And that’s an issue for the bean counters. Growing profit margins leaves little room for heartstrings and tradition.

Enter the third-generation F40 BMW 1 Series in its hottest guise, the M135i. The venerable B58 engine exits. Gone, too, is the playful rear-drive chassis. In its place is a boosted 2.0-litre powertrain – and with 225kW and 450Nm, it’s the most powerful BMW four-pot in its history – and a front-biased xDrive all-wheel-drive system. With a 0-100km/h time of 4.8 seconds, performance hasn’t suffered. And despite the AWD system, weight has actually dropped by 30kg to 1525kg.

From the get-go, the change in personality is apparent. The power delivery is smooth, with the ultra-linear delivery resulting in deceptively fast progress. It’s not neck-snapping pace, but the M135i is swift point-to-point, while the four-cylinder has a distinctively Mini Cooper JCW soundtrack – just one with the volume turned down to seven. The eight-speed torque-converter automatic ties in well, too, and there are steering wheel-mounted paddles to play with to generate myriad pops and bangs.

With the new xDrive’s front-biased set-up you’ll have more chance of wiggling the rear under brakes on corner entry than you will during power down past the apex. A rather conservative maximum of 50 percent of drive can be sent rearwards at one time. A Torsen mechanical limited-slip differential helps translate grunt to grip, while a tricky anti-slip system works in conjunction with the DSC to keep understeer at bay. Branded ARB, it’s taken from the i3s and can detect wheel slip 10 times faster than the set-up it replaces.

If you want adaptive dampers, you can’t keep the standard 19-inch alloys due to an engineering requirement with the suspension –essentially, it won’t fit. Instead, you have to option the smaller 18-inchers and hand over and extra $400. This is interesting given that the bigger wheels, with fixed-rate suspension, result in a firm, not harsh, ride quality. Some softening, with a dedicated Comfort damper mode, could help.

Inside, the 1 Series has taken a massive step forward. The F40’s design and quality has increased demonstrably, so much so that it has mini-me 8 Series vibes. A 10.25-inch central takes care of the infotainment. Screen. A second 10.25-inch screen is used for the instrument cluster. Wireless Apple CarPlay (which is now no extra cost) and BMW Intelligent Personal Assistant are the highlights. The latter allows you to perform various tasks via voice activation; you just say “Hey, BMW” for it to work.

Not only does the 34mm wider (1799mm) and 13mm higher body (1344mm) offer more room for heads, shoulders, knees and toes – particularly in the rear – the boot space has increased by 20 litres to 380 litres. Overall length has actually shrunk by 5mm (4324mm).

The M135i is a very capable and competent hot hatch, it’s just not as exciting as the one it replaces. But niches don’t balance the books. And with a much broader breadth of attributes, the M135i’s mass appeal outweighs holding onto the past.


Mercedes-AMG A35, Audi S3, VW Golf R


Model: BMW M135i

Engine: 1998cc 4cyl, dohc, 16v, turbo

Power: 225kW @ 4500-6250rpm

Torque: 450Nm @ 1750-5000rpm

Transmission: 8-speed automatic

Weight: 1525kg

0-100km/h: 4.8 seconds

Economy: 7.5L/100km

Price: $63,990

On sale: Now