2018 Audi A3 vs BMW 1 Series

What's the difference?

The Audi A3 is now five years into this current generation and it’s beginning to show its age in terms of tech and styling in the cabin, despite updates adding new equipment. It’s expensive compared to most small cars but is spot-on for a prestige vehicle. 

The Sedan is, in my view, the best looking small sedan on the planet and offers the biggest boot space in the A3 range. The Sportback, however, is arguably more practical, with better legroom, headroom and cargo carrying ability (with the rear seats down). The Cabriolet has the same perfect proportions as the sedan, but like all good convertibles doesn’t make practicality a priority. 

The sweet spot of the range would have to be the Sportback 2.0 TFSI quattro S Line with its $50,000 list price making it the most affordable but most 'specced up' A3 in the entire range.

I’m the first to say the 1 Series is kind of the ugly duckling of the BMW family, but those looks grow on you, especially when you consider that this is exactly what a BMW hatch should look like. That this is one of the only rear-wheel-drive hatches left on the planet makes it even more special – and of course engaging to pilot. The downside is the price and the lack of value from a features perspective, plus safety could be bolstered with more technology. Still, anybody who likes to drive will commend you on your choice of a BMW.  

The A3 comes in three body styles: a five-door hatch, which Audi calls the Sportback; the four-door Sedan, and a two-door convertible which it refers to as the Cabriolet. It may not surprise you to learn they're all different sizes, too.

The Sportback doesn’t look like the shortest of the three but at 4313mm end-to-end it’s 145mm shy of the Sedan and 110mm shorter than the Cabriolet. But those exterior dimensions don’t tell the whole story on interior space. So, which one is more practical? We’ll get to that.

But first, the looks. The Sportback has a wagon-like appearance with its large (for a hatch) rear quarter windows. If you think it looks longer than a regular hatchback, you’re right: a Volkswagen Golf is 50mm shorter even though it shares the same platform as the A3.

However, unlike the Golf, there’s something about the Sportback’s proportions which doesn’t seem balanced.

Then there’s the A3 sedan. Now this is a perfectly proportioned car. Looking like a miniature version of the A8 limo, the A3 is one of the only tiny sedans on the planet that looks fantastic.

The Cabriolet is based on the Sedan, and it too looks beautifully proportioned. Soft tops, when they’re up, never do much for a car’s profile. Be it a Bentley or an A3, they always look better down. When the roof is down the A3 appears lower, sleeker, and tougher.

While all A3’s have the same grille and headlight design the rear treatment of the Sedan and Cabriolet is more refined with their blade-like tail-lights and boot lid lip, than the Sportback, even if it does have a roof-top spoiler.

Interiors are identical across each A3 grade, the cabin benefiting from excellent fit and finish and the use of high-quality materials. But if you like bling-tastic cockpits, maybe you should be looking at a Benz A-Class because even the fanciest A3 money can buy, the RS3, comes with a small display screen and a rather low-key interior design. 

As for rivals, the new A-Class (which I’ve just reviewed) is a glitzy competitor in hatch form, with a soon-to-arrive sedan going head-to-head with the little Audi as well.

Or there’s BMW’s 1 Series hatch and 2 Series Coupe. The 1 Series hatch is seriously ugly, the 2 Series is stunning and looks fast standing still.

The 1 Series looks exactly how a BMW hatchback should. I know that sounds silly but what I mean is BMW could easily have designed something that was proportioned more like other hatches; that popular sort of bubble on wheels.

Instead, what you have is a hatch that retains BMW’s traditional attributes – there’s the long nose, the cabin set back, the high sides and the wheels placed almost at the very corners.

Seriously, look at the image of the orange 1 Series side on, now hold your out your hand and use it to cover just the windows – see, it looks just like a BMW 2 Series convertible. Does it look good? To me it does, right up until you get to the hatchback, and then it looks a bit awkward. But I do admire BMW’s designers for creating something unique looking.

That orange 120i ('Sunset Orange' is the official colour) is the most recent 1 Series I’ve tested. Those wheels aren’t standard, they’re 18-inch M ones and they are part of the optional 'M Sport Package', which also includes the body kit, complete with side skirts and the lower grille in gloss black.

The 1 Series is as affordable as BMWs get, but it’s still a real BMW. The cabin, for example, looks much like  every BMW, only smaller.

There’s the large, slab-like dash with the display sitting atop, below are the air vents and below that is the radio and then the climate-control dials. It’s a stack that’s kept its familiar order and shape on nearly all BMWs for what seems like forever.

The centre console has a similar layout as the one in a 3 Series or 5 Series or any Series, with the shifter and rotating media controller. Even the doors have the same design as those cars higher up in the BMW family, with the big moulded pockets and large pull handles.

The cabin isn’t as ‘blingy’ as the new Mercedes-Benz A-Class, but it’s not as plain as the Audi A3.

That steering wheel is part of the M-Package too, but the leather upholstery is a separate option.

The signs that this isn’t a more expensive BMW are the manual handbrake, the compact instrument cluster with analogue dials, the small dash-top display and the fact that  there’s a lot less real estate to be covered by trim pieces and material, which doesn’t have the same high-quality feel as those fancier models.

The cabin isn’t as ‘blingy’ as the new Mercedes-Benz A-Class, but it’s not as plain as the cockpit of an Audi A3 – it’s somewhere in between; refined and well designed.

At 4.3m end to end, the 1 Series is 16mm shorter that the A3 Sportback and 20mm narrower, at just over 1.7m across.

The Sportback and Sedan have five seats, while the Cabriolet has four. Leg and headroom in the back row for all body styles is limited. The Sportback will give you the most rear legroom, while the sedan has a few millimetres more space for your knees than the Cabriolet. 

At 191cm tall I can sit behind my driving position in the Sportback with a pinkie finger’s space, while my knees brush the seatback in the Sedan, and the Cabriolet won’t accommodate my long legs back there at all.
  
Rear headroom in the Sportback isn’t bad with enough room for my big head to clear the ceiling thanks to that tall(-ish) flat roofline while the sedan is a tighter fit but I just make it under. The Cabriolet’s low fabric roof means only small adults or kids will be able to sit up straight back there – unless the top is down and then you have literally unlimited headroom.

Boot space varies obviously depending on the body style. The Sedan has biggest cargo capacity with 425 litres, the Sportback offers up 340 litres, but fold those rear seats down and you have 1180 litres at your disposal, plus a bigger aperture to fit stuff in. The Cabriolet’s folding roof eats into the boot space, but you’re still left with 320 litres even when it’s down.

The folding roof is automatic and can be raised or lowered at up to 50km/h, but it’s slow - I’ve timed it and it takes about 20 seconds to open or shut.

Storage throughout the cabin is limited, too. There are two cupholders up front in all cars, while the Cabriolet is the only A3 to have two cupholders in the back (they’re between the rear seats). If you want cupholders in the rear of the Sedan and Sportback you’ll have to option the $450 fold-down armrest which houses them.

All grades above the 1.0 TFSI come with storage nets in the seatback and front passenger footwell, 12-volt sockets in the rear centre console and boot, plus cargo nets back there, too. There’s a USB jack in the centre console of all A3s.

The 1 Series’ boot has a cargo capacity of 360 litres, which is more than the boot space of the Audi A3 Sportback (340 litres) but less than the new Mercedes-Benz A-Class’s 370 litres of luggage room.

What does that mean in real-world terms? It’s not a lot of space, and you might struggle to get a pram in, so check that  beforehand if you have small ones. That said, there was enough room for two carry-on sized bags, a computer bag and a scooter when my wife and I went on a weekend away with our four year old.

Space in the second row is also limited. Headroom isn’t too bad, but at 191cm tall I can’t sit behind my driving position without my knees digging into the seatback. I can just fit back there in the A3 and I have even more room for my knees in the A-Class.

Room up front is good with plenty of shoulder, head and elbow room for somebody my size.

Storage could be better: you’ll only find cup holders up front (two of them), the centre-console storage bin is small and so are the door pockets in the rear, but all is not lost because the door bottle holders in the front are massive, the glove box is a decent size and there are nets on the backs of the front seats.

It’s good to see directional air vents in the second row and a 12V power outlet, but there aren’t any USB ports back there – if you want to plug in a device there’s only one and it’s up front, along with another 12-volt outlet.

The rear doors appear large from the outside but the aperture to get in and out isn’t huge – again look at the images to see what I’m on about.

So, it’s a little BMW, does that mean the price is little? Nope. It’s like asking if a little Rolex is cheap. it might be cheap for a Rolex, but not for a watch in general, and it's the same for the 1 Series.

The 1 Series range starts at $39,990 for the petrol 118i, while its 118d diesel twin is $44,990. Both come with the standard Sport Line package, which adds 16-inch light alloy wheels and LED headlights, while in the cabin it brings cloth upholstery, sports seats and a leather sports steering wheel, high-gloss black trim and BMW scuff plates. Other standard features include a 6.5-inch display, with sat nav, reversing camera, six-speaker stereo, a digital radio and air-conditioning.

The 125i is only a tempting $3000 above the 120i at $49,990 and comes standard with the M Sport Package

For another $7000 you can get into the 120i grade, which lists for $46,990 and comes standard with the Urban Line package, which fits 17-inch alloy wheels in the double-spoke style, adds front and rear bumpers with matt finish air intakes, plus dual chrome tail pipes, while the cockpit gets leather upholstery, and gloss-black and pearl-effect trim.

Along with the Urban Line gear, the 120i has all of the 118i’s standard features and adds more of its own, including front and rear parking sensors, LED fog lights, dual-zone climate control, the interior lights package, plus smart phone connectivity with voice control.

The 125i is only a tempting $3000 above the 120i at $49,990 and it comes standard with the M Sport Package, which is what our most recent test car was fitted with (see the images of the orange 120i). The M Sport pack adds 18-inch light-alloy wheels and the tough body kit, the M Sport steering wheel and aluminium trim to the interior.

Apart from the M Sport package, also standard is an 8.8-inch screen with a DVD player and, somewhat disappointingly, cloth and Alcantara seats. Sure, they look nice, but how did the 120i get real leather and the 125i didn’t?

Still the 125i comes with more impressive performance hardware than the grades below, such as sports suspension, variable steering, M Sport brakes (inner vented rear discs) and blue calipers.

At the top of the 1 Series range is the M140i and while it’s getting into pricey territory at $59,990 (don’t forget that’s not including the on-road costs), you are getting what I’m predicting will be a sought after car in years to come. And possibly even a collector's item.

The M140i isn’t a fully fledged M car – it’s a diet version from the M Performance section of BMW, which gives cars a bit of a taste of the hardcore world of beasties like the M2 and M3, without costing as much or being quite as brutal to drive.

I’ll talk about the high-performance parts more in the sections on driving and engines, but briefly, you might like to know the M140 gets adaptive suspension and a six-cylinder turbo petrol engine – yes in a tiny hatch. Powerful.

The price is bang-on compared to rivals such as the new Mercedes-Benz A-Class and Audi A3

The M140i also has the standard features of the 125i and adds its own, such as the 18-inch alloy wheels, black chrome tail pipe, adaptive LED headlights, leather upholstery, keyless entry, power front seats and a Harmon/Kardon 12-speaker stereo.

So, is the 1 Series good value? The price is bang-on compared to rivals such as the new Mercedes-Benz A-Class and Audi A3 (click those to see my reviews of them, too), but the 1 Series gets less in standard features compared to the Benz (such as Apple CarPlay) and about the same level of equipment as the A3.

If you’re a fan of black and white, you might be relieved to know these are the only two colours you won’t have to pay for. The rest, including Sunset Orange (see the images), Seaside Blue, Melbourne Red, Glacial Silver and Mineral Grey cost $1190.

Now on to the engines. Yes, I’m doing this in what may seem a strange order, but trust me, it’s to guide you safely through the A3 range without anybody getting lost. We don’t leave anybody behind here, not on my watch.

The grades indicate the engines in the A3 line-up – the higher the grade, the more powerful the engine. So, the range starts with the 1.0 TFSI which has a 85kW/200Nm 1.0-litre three-cylinder engine, and steps up to the 1.4 TFSI which has a 110kW/250Nm 1.4-litre four-cylinder with cylinder on demand (COD) letting it run on two cylinders when not under load). Both are front-wheel drive (FWD) cars.

Next rung up is the 2.0 TFSI Sport and that has a 2.0-litre four making 140kW/320Nm with drive going to the front wheels. The top of the range is the 2.0 TFSI quattro S line which has the same engine but is all-wheel drive (AWD).

Those are all turbo-petrol engines – yes, no diesels and no manual gearbox option either. All have a seven-speed dual-clutch automatics shifting the gears. 

If you’re after something more hardcore in the same package, there are two halo ‘models’ that sit above the A3 range: the S3 with a 213kW/380Nm 2.0-litre turbo-petrol four and the RS3 with its 2.5-litre five-cylinder turbo-petrol making 294kW/480Nm. 

Given they are almost stand-alone models, the S3 and RS3 aren't included in this review, but you can read about them separately by clicking those links.

As you step up through the grades the engines become more powerful. The entry-grade 118i has a 1.5-litre three-cylinder turbo-petrol making 100kW of power and 220Nm of torque, while its diesel twin has a 2.0-litre turbo-four making 110kW and much more torque at 320Nm.

The 120i has a 2.0-litre turbo-petrol four-cylinder and an output of 135kW and 270Nm. Then above that is the 125i, which is getting into performance territory with its 2.0-litre turbo four petrol making 165kW and 310Nm.

But all hail the M140i and its beautiful 3.0-litre six-cylinder turbo-petrol, with 250kW and 500Nm that it wants to share with you.

All cars are rear-wheel drive and all have an eight – hang on, that’s important: all cars are rear-wheel drive. Do you know how many other hatchbacks are rear-wheel drive? Try next to none – not the A-Class, not the A3, not the Golf. Rear-wheel drive is favoured for performance cars because it offers better balance and better acceleration thanks to the weight shift to the rear of the car. BMW has long claimed that RWD is one of the keys to its "sheer driving pleasure".

Now let me finish the sentence... all have an eight-speed automatic, and it’s a beauty – a little slow, but smoother for driving than a dual clutch, and way more fun than a CVT.

But wait, because there’s a manual gearbox, too. It’s a no-cost option and you can get it on any variant apart from the 125i.

Fuel usage depends on the engine and body style, with weights varying across the range. The most fuel-efficient engine is the 1.0-litre which is only offered on the Sportback, and Audi says over a combination of urban and open roads you should see it use 4.8L/100km.
 
The 1.4 TFSI Sportback uses 5.0L/100km, while the Sedan uses 4.9L/100km, but the heavier Cabriolet drinks more at 5.1L/100km.

My most recent A3 test car was a 1.4 TFSI Sportback and the trip computer reported 7.6L/100km over a mix of city and country kays - not bad.

The 2.0 TFSI Sport Sportback uses 5.9L/100km, the Sedan needs 5.8L/100km, the Cabriolet a bit more at 6.0L/100km.

The 2.0 TFSI quattro S Line Sportback uses 6.2L/100km, while the Sedan will go through 6.1L/100km and the Cabriolet again is highest with 6.4L/100km.

That raises the question of how much more does the Cabriolet weigh? About 170kg more than the Sedan and  Sportback thanks to the extra reinforcement needed to strengthen the body to compensate for the rigidity it loses by not having a fixed metal roof.

BMW says its most efficient petrol engine in the 1 Series range is the three-cylinder in the 118i, which uses just 5.2L/100km after a combination of urban and open roads.

The diesel unit in the 118d will use 4.2L/100km. Let that sink in for a moment – petrol engines are becoming so fuel efficient that they’re rivalling diesels, which have long been lauded for their frugality.

So don't just buy the diesel just because it’s more efficient, because you may never recoup the extra money you paid over the 118i.

Thirstier but still super-efficient is the 2.0-litre in the 120i. BMW’s claim is 5.9L/100km. During my week with the 120i I put 413km on the clock and used 15.57 litres doing so (measured at the pump), which comes to 7.7L/100km. The car’s computer said 7.8L/100km.

That’s great fuel economy, even if it is higher than the claimed figures. The 125i’s official fuel consumption is also 5.9L/100km.

It’s not surprising that the M140i, with its 3.0-litre six-cylinder turbo-petrol engine, is the least fuel efficient but its official figure of 7.1L/100km is still low.

I’ve driven all A3 variants from the 1.0 TFSI to the 2.0 TFSI quattro S Line, plus the S3 and RS3, but most recently I tested the 1.4 TFSI Sportback, which I’ll focus on here.

Our car was fitted with two optional packages – the 'Style Package' which adds LED headlights, 18-inch alloys and sports suspension, and the 'Technik Package' which brings a virtual instrument cluster, an 8.3-inch display and sports steering wheel.

Those larger 18-inch alloys wearing low profile 225/40 Hankook Ventus S1 Evo2 tyres look great, but like thin-soled shoes you’ll feel every imperfection on the road giving a harsher texture to the ride, plus they can be noisy on course-chip bitumen. 

I’d stick to the standard 16-inch wheels. Sure, they don’t look as racy, but the ride from those, on 55 profile tyres, is a lot more cushioned.

Despite that grittier feel from the tyres the sports suspension is excellent and manages to soften bigger bumps well. Handling is good too, thanks to that suspension keeping the body well controlled.

Good visibility, steering that’s light but offers decent feel, and a comfortable seating position make the A4 pleasant to pilot,  but not hugely engaging. If you're after more of a driver’s car, the S3 and RS3 will deliver – trust me.

Acceleration isn’t bad from the 1.4-litre, with 0-100km/h claimed to be 8.2 seconds. That dual-clutch transmission is a quick shifter and smooth even in bumper-to-bumper traffic, but only if you turn off the stop-start engine system (jerky and hard to tolerate). 

I’m also not a fan of the way the stop-start system switches the engine off as you coast to a stop at traffic lights and intersections. For me, that borders on a safety issue, particularly when needing to turn on an amber only to find you momentarily lack steering or power.

As mentioned in the engine/transmission section, the 1.4 TFSI Sportback is a FWD car. Put it on a steep hill, as I did on our test incline, and even in dry conditions it’ll lose traction under hard acceleration. Traction control reins the slippage in, but AWD 'quattro' cars won’t struggle for traction in the same circumstances. 

If I could run into a showroom and take whichever 1 Series I wanted it’d be the M140i – and not just because it would give me the best chance of outrunning the police after they discovered the break-in, but because the thing is so much fun to drive.

It’s also the most expensive, of course, but it’s worth it for that screaming straight six and for its agility.

You’ll have fun, though, in every grade of the line-up – they’re all engaging to pilot with great driving positions, good pedal feel and that eight-speed auto is smooth in traffic yet will shift hard when you have your race face on.

You might find the 118i, with its three-cylinder, a little under powered, especially with five people and their bags on board. If you’re keen on this grade, then consider the diesel, which will give you more torque. Our 120i test car proved to have enough oomph for overtaking and moving quickly when needed.

The 125i is less tame, with its throatier exhaust note, firmer ride and better handling thanks to the M suspension.

If you plan on choosing the M Sport Package for, say, the 120i keep in mind that you’ll lose the comfortable ride these cars have on their standard tyres.

Our 120i had the pack and while the body kit looks tough, the 18-inch alloy wheels shod in low-profile rubber (225/40 R18 Bridgestone Potenza 5001s front and 245/35 R18 at the rear) meant the ride was overly jarring on bad roads.

Given that Sydney was my test bed for the 120i and its roads are shocking, the ride was less than comfy. The M-sport suspension will only make the ride less comfortable, but in return you’ll have a 120i with better handling.

Run-flat tyres are common on BMWs and you may have heard of a few issues surrounding noise and a harsher ride. While that can be true, it's the price you pay for having a tyre you won’t immediately have to change if you get a puncture. Only the 120i and the M140i don’t have run-flats as standard.

The BMW 1 Series has the maximum five-star ANCAP rating, but this was awarded in 2011 and a lot has changed since then – particularly expected levels of safety.

BMW has updated the advanced technology to keep up with AEB (city) with pedestrian detection and lane-departure warning standard on all grades. It would be good to see more safety tech in the form of blind-spot warning, rear cross traffic alert and lane-keeping assistance.

For child seats you’ll find two ISOFIX mounts and three top tether points across the rear row.

A spare tyre is not something you will find – all apart from the 120i and the M140i have run flats, while those two have puncture-repair kits.

The A3 is covered by Audi’s three-year/unlimited kilometre warranty. Servicing is recommended at 15,000km/12-month intervals. A three-year/45,000km service plan is available and costs $1680.

The 1 Series is covered by BMW’s three-year/unlimited kilometre warranty. Servicing is condition-based – the car will let you know when it needs a check-up.

BMW offers two service packages, which cover the car for five years/80,000km: the Basic is $1340 and the Plus costs $3550.