BMW 1-Series (F40)


Debut: 2019
Maker: BMW
Predecessor: 1-Series (F20)



 Published on 15 Feb 2020
All rights reserved. 


The 1-Series finally switches to front-wheel drive to pursue packaging advantage, but it is not necessarily poorer to drive...


We have been anticipating the 1-Series to switch from rear to front-wheel drive architecture for a few years, and now the day finally arrives. The new 1-Series, codenamed F40, is developed based on the UKL2 platform that is already serving the 2-Series Active Tourer, X1, X2, the China market 1-Series sedan, Mini Clubman and Countryman. In addition to the closely related UKL1 (Mini hatchback), BMW's FWD platform now achieves an annual output of more than 1 million units, which is nearly half of the group's total. Adding the 1-Series hatchback and the upcoming 2-Series coupe/cabriolet/gran coupe will strengthen it further. Don't see BMW as an RWD brand anymore.

The F40 is again 5-door only. There are 2 different styling, one for the regular models and another for M Sport trims. They differ mainly in bumper design and grille color (M135i gets also mesh treatment), though neither of them could be called beautiful. Its larger, more angular version of double-kidney grille might shout louder about its identity, but it is unlikely to endure the test of time. Ditto the oddly shaped headlamps and the complicated front bumper. Nevertheless, in terms of proportion, the new car certainly looks more balanced than the old one. I have never been fond of the old car’s styling. The need to package a longitudinal straight-six into a compact family hatch body resulted in a very strange proportion. Having switched to transverse engine layout, the new 1-Series is finally freed from the old shape. Its front overhang is extended, the front axle is relocated closer to the cabin, the windscreen is set at faster angle and the bonnet gets more sloping. This body looks more wind-cheating and more modern. However, it also makes the baby BMW undistinguishable from mainstream family hatches on the market. Perhaps this is why Munich feels the need to use a larger kidney grille.



M135i loses 6-pot power but no performance...


Compared with the old car, the new one is no longer but 34mm wider and 13mm taller. Its wheelbase is shortened by 20mm to 2670mm, but thanks to the shorter engine compartment, rear seat legroom is improved by 33mm. Rear headroom is also improved by 19mm. Well, considering how cramped the old car’s back seat was, that is hardly a surprise. Meanwhile, the boot gets 20 liters larger, now measuring a class-competitive 380 liters. BMW claims the new chassis is stiffer, while kerb weight is reduced by 30kg, thanks in part to aluminum bonnet and tailgate. The suspension is predictably MacPherson struts up front and multi-link setup at the rear (unlike some rivals which save costs by using torsion-beam axle for lower power models). M Sport suspension is stiffer and mounted 10mm lower than the standard setup. Adaptive dampers are a further option.

We no longer hear BMW claims 50:50 balance, but switching to UKL2 does not mean the end of the world. There are plenty of very quick and entertaining hot hatches on the market. Nothing stops BMW from matching or beating them. It just depends on whether BMW can crack the code. The new M135i is that car. Downgrading from the old M140i means replacing the turbocharged 3-liter straight-six with a 2.0-liter turbo four – isn’t it sound too familiar for the class? This engine has been used on X2 and JCW version of Mini Clubman and Countryman. It produces 306 horsepower, exactly the same as rival Mercedes-AMG A35, but 332 pound-foot of torque beats anything in the class bar the fire-breathing A45. Actually it is too torquey for BMW’s 6-speed manual gearbox, so it comes with an 8-speed torque converter automatic. To put down the power, the M135i gets not only a Torsen LSD at its front axle but also xDrive as standard. The latter employs a Haldex-type multi-plate clutch to engage the rear axle in case of need, so it is not a permanent 50:50 system. The M135i gets also extra bracings at the front structure and tunnel area to reinforce the chassis, plus a quicker ratio steering rack.

Other engines are already found on UKL2 cars, including a 1.5-liter 3-cylinder turbo diesel (116d, 116hp), a 1.5-liter 3-cylinder turbo petrol (118i, 140hp) and a 2.0-liter 4-cylinder sequential twin-turbo diesel (150hp for 118d or 190hp for 120d). BMW's modular 3 and 4-cylinder engines are generally remarkable, delivering strong performance and flexibility yet good refinement and outstanding economy. You can expect the same for these motors. However, if you look for a really super engine to rival A45 or RS3, sorry, it is unlikely to happen. The M135i is as far as BMW plans to offer.



Cabin gets more stylish and higher in quality, but most welcomed is more rear legroom.


If you are not sure about its exterior design, you can be relieved that the interior looks and feels upmarket. It follows the design theme set by the 8-Series coupe. The dashboard, center console and its infotainment screen layout are all stylish and well finished. Materials are premium, if not ultimately as premium as Mercedes A-class. The optional TFT instrument looks advanced, although it is not reconfigurable. The iDrive system is intuitive with its familiar rotary control knob. Besides, it follows Mercedes to introduce a voice recognition command control feature, thanks to tier-one suppliers. As expected, the front seat and driving position on BMW is hard to fault. Ergonomics are good, although the higher cowl position and the disappearing bonnet are strange to BMW owners. Legroom at the rear seat is certainly more generous than the old car and comes close to match the class norm, although headroom is still tight for tall occupants. Getting into the rear seat is also made easier by the larger door aperture. All thanks to the switch to FWD platform.

Is it more fun to drive than the old car? For cooking models, the answer is definitely yes. Remember we criticized the old 1-Series for soft suspension and an inert chassis? It was tuned to deliver safe understeer at the limit and difficult to induce oversteer. The new car has corrected the mistake. Its front end is a lot more locked down. The front wheels generate remarkable grip and traction. The steering is unusually quick and accurate, so the nose feels responsive and pointy. No matter the standard suspension or M Sport suspension, it is firmer than the old car's. This results in better body control. The ride doesn’t suffer too much, thanks in part to the stiffer chassis. On really sharp bumps and pot holes it does send shockwaves into the cabin, but when the roads get normal or as speed rises, it damps beautifully. Wind and road noises are also well suppressed. Refinement is certainly much improved. Ditto the driver appeal. Compared with other premium family hatches, like A-class and Golf, the new 1-Series has an upper hand in dynamics.



Most surprising is a mobile rear end.


The M135i is also a good car. First of all, it is quick. While the four-cylinder turbo engine is not as eager at the top end as that of Honda Civic Type R (let alone the old straight-six), it still delivers an elastic power that stretches from very low to high revs. Working impeccably with the 8-speed automatic and aided by 4-wheel traction, it is capable to sprint from rest to 60 in merely 4.6 seconds. Do you miss the old straight-six? Yes, you do miss the creamy smoothness as well as the musical sound, but in the new world order of 4-cylinder power, the new engine is pretty good. We just hope its exhaust note could be more characterful, especially at the top end.

The M135i also rides and handles very good. Like the cooking models, its steering is quick and precise, resulting in a razor-sharp turn-in. Excellent front-end grip and Torsen differential keep the nose biting. Although there are hints of torque steer when power out of corner, the car doesn’t understeer. It doesn’t roll much either. Meanwhile, you will be surprised to find out the multi-link rear end is more mobile. Lift off throttle can induce oversteer, the nose tucks in and the rear rotates. The xDrive offers remarkable traction but it works brilliantly with torque vectoring (by brakes) and traction control to maintain stability without ruining driver control. The new M135i feels more lively than the old M140i as well as A35. It runs very close to the Golf R, if no match for the Civic Type R for overall handling prowess, control fineness and interaction. Unlike the old car, it is well rounded, showing no major weaknesses. However, it is not the most communicative or transparent hot hatch. The presence of torque steer and the meaty but not feelsome steering are hard to love. The lack of character is another. You can’t help thinking 20 years later we will still remember the rear-drive M140i, but we will definitely forget this M135i. Maybe in 5 years’ time.
Verdict:
 Published on 12 Feb 2021
All rights reserved. 
128ti


BMW's first front-wheel-drive hot hatch beats the mighty Golf GTI.


Until now, the new BMW 1-Series has a huge gap between its range-topping M135i xDrive and the regular 120i. Think in this way: the former rivals Volkswagen Golf R while the latter is an equivalent to the regular Golf 1.5TSI. How come it misses the opportunity to steal sales from the volume Golf GTI? That loophole is now amended by the introduction of 128ti.

The ti badge, stands for "Turismo Internazionale", was widely used in the 02 series of the 1960s and last employed by the 3-series Compact. It is a suitable nameplate for a BMW hot hatch that is not up to the league of M-cars. The 128 name reflects also this performance positioning. Power comes from the familiar B48 2.0-liter four-cylinder turbo motor, rated at 265hp and 295 lbft here, which is 20hp and 22lbft stronger than Golf GTI. It is good for 155 mph and 0-60 in 5.8 seconds, beating its rival.

On the downside, the 128ti employs a mandatory 8-speed automatic gearbox supplied by Aisin, leaving its drivers no way to enjoy manual shifting and heel-and-toe driving. Moreover, while the Golf GTI employs VAQ electronic variable LSD, the BMW settles with a passive Torsen LSD. Nevertheless, BMW has introduced a sophisticated kind of traction control called ARB, which is integral with the engine ECU so that it can tame wheelspin 10 times quicker than conventional stability control.

Compared with the M135i xDrive, losing the rear-axle drivetrain and extra chassis bracings save 80 kg from its kerb weight, although 1445 kg (DIN) is still heavier than the class norm. The chassis tuning is different from the M135i as well, and not necessarily milder. The springs and dampers are stiffer than those of the top model. Toe-in is reduced in all corners. The steering is made slightly slower for a more linear manner. The LSD has its locking ratio reduced from 36 to 31 percent. You get the option of 19-inch wheels, but the stickiest Michelin Pilot Sport 4S tires are available in only 18-inch, which is good, because it doesn’t ruin ride comfort as much. However, inside the 18-inch alloy wheels are the same huge brakes from the M135i. With less weight to stop, the smaller car should be superior in braking performance.



More playful, more involving hence more fun than the Golf GTI.


Like the M135i, the 128ti offers no adaptive dampers, which is another area losing to Golf. Many modern BMWs need adaptive dampers to excel in ride and handling, but not this car. Its suspension setup is perfectly judged. The ride is a little harsh below 30 mph, but once up to speed, it flows with poise and composure. It soaks up the bumps on B-roads yet has its body tightly controlled. It turns in eagerly. The retuned steering is more intuitive than that of the M135i, offering a clearer sense of connection to the front wheels, although not quite as feelsome as Honda Type R, of course. The nose bites hard, refusing to understeer. Plant the throttle in a tight corner, you will sense some torque steer, and the Torsen LSD could hesitate a while before taming the wheelspin. It might not be as effective an A-to-B car than the Type R, Megane RS or even Hyundai i30N, but it beats them clearly in ride and refinement, because it aims at the Golf GTI rather than those hardcore hatchbacks. What’s surprising is, it is more prone to throttle steer than the Golf, if not as much as Focus ST. Lift off mid-corner will tuck its nose in. Bury the throttle again and counterlock the steering will kick its tail out for a smooth slide. So the 128ti is more playful, more involving hence more fun than the Golf GTI.

The powertrain might not be memorable, but powerful enough, refined and simultaneously frugal. Well, you lose the chance to enjoy shifting yourself, but the Aisin automatic is mostly smooth and responsive.

What impresses most is the all-round package. Golf GTI used to be the only hot hatch that blends performance, handling, comfort, usability and build quality at a reasonable price. Now its position is taken up by the new BMW. While the Golf has its interior materials downgraded in the recent makeover, the 1-Series has taken a giant step forward, offering premium quality materials, classy design and ergonomics that puts the VW in shame. The hardware controls and the software design of its i-Drive system are so much easier to use than the Volkswagen’s touchscreen infotainment system. Yet, the 128ti is priced at £33,000, undercutting its German rival. BMW’s first attempt at the front-wheel-drive hot hatch segment is amazing. The only reservation is styling: just make sure you are okay with its face.
Verdict:
Specifications





Year
Layout
Chassis
Body
Length / width / height
Wheelbase
Engine
Capacity
Valve gears
Induction
Other engine features
Max power
Max torque
Transmission
Suspension layout
Suspension features
Tires
Kerb weight
Top speed
0-60 mph (sec)
0-100 mph (sec)
118i
2019
Front-engined, FWD
Steel monocoque
Mainly steel
4319 / 1799 / 1434 mm
2670 mm
Inline-3
1499 c.c.
DOHC 12 valves, DVVT, VVL
Turbo
DI
140 hp
162 lbft
6-speed manual
F: strut / R: multi-link
-
205/55WR16
1290 kg
132 mph (c)
8.0 (c)
-
120d xDrive
2019
Front-engined, 4WD
Steel monocoque
Mainly steel
4319 / 1799 / 1434 mm
2670 mm
Inline-4 diesel
1995 c.c.
DOHC 16 valves
Sequential twin-turbo
CDI
190 hp
295 lbft
8-speed automatic
F: strut / R: multi-link
-
225/45YR17
1515 kg
143 mph (c)
6.6 (c)
-
M135i xDrive
2019
Front-engined, 4WD
Steel monocoque
Mainly steel
4319 / 1799 / 1434 mm
2670 mm
Inline-4
1998 c.c.
DOHC 16 valves, DVVT, VVL
Turbo
DI
306 hp / 4500-6250 rpm
332 lbft / 1750-5000 rpm
8-speed automatic
F: strut / R: multi-link
-
225/40YR18
1525 kg
155 mph (limited)
4.6 (c)
-




Performance tested by: -





Year
Layout
Chassis
Body
Length / width / height
Wheelbase
Engine
Capacity
Valve gears
Induction
Other engine features
Max power
Max torque
Transmission
Suspension layout
Suspension features
Tires
Kerb weight
Top speed
0-60 mph (sec)
0-100 mph (sec)
128ti
2021
Front-engined, FWD
Steel monocoque
Mainly steel
4319 / 1799 / 1434 mm
2670 mm
Inline-4
1998 c.c.
DOHC 16 valves, DVVT, VVL
Turbo
DI
265 hp / 4750-6500 rpm
295 lbft / 1750-4500 rpm
8-speed automatic
F: strut / R: multi-link
-
225/40YR18
1445 kg
155 mph (limited)
5.8 (c)
-
















































Performance tested by: -





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General models


128ti


M135i



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