Currently reading: First drive: 2019 BMW 3 Series 330i M Sport prototype
Compact executive saloon icon enters a seventh generation later this year – and it’s getting its sporting mojo back

In a car market that almost always makes it harder for a successful brand to stay on top than to get there in the first place, the BMW 3 Series is beginning to look like a car of gradually waning fortunes. Will the good times ever roll for it quite like they did in its late 90s and noughties pomp?

For all sorts of reasons — not least because it’s hard to think of another car in recent times that has achieved such critical acclaim and sales popularity in equally phenomenal measures — we might wonder.

The new 3 Series has been unveiled - get your first look here

For the next-generation 3 Series, due to be unveiled at this autumn’s Paris motor show and appear on UK roads in early 2019, reasserting the compact executive saloon segment dominance that its predecessors have enjoyed looks a particularly tall order. It faces a Mercedes-Benz C-Class tha's good enough in its latest iteration to comprehensively outsell the outgoing F30 3 Series. The Alfa Romeo Giulia and Jaguar XE, neither of which existed at the launch of the sixth-generation 3 Series seven years ago, are both plainly out to purloin BMW’s mantle as the maker of the best-handling compact saloon. Up until now, you might say that mantle has been ‘on loan’; first at Gaydon, then more recently in Turin. But soon it’ll be the time for Munich to either reclaim it or give it up more permanently.

Unlike us, of course, BMW’s own executives, designers and engineers have not been wondering, or indeed worrying, about what the future holds; confident in the strength and equity built into the 3 Series brand over more than four decades, they’ve clearly been getting on with the job of bringing the world the seventh-gen version of a car whose name has become shorthand for its segment.

And they’re almost finished. With only the finer points of software calibration and tuning still to do, BMW recently made the new 3 Series available to us in prototype form for a short test drive around German’s Eifel mountains and a not-so-short couple of laps of the Nürburging Nordschleife.

2 Bmw 330i proto rear tracking


Read our review

Car review

The BMW 3 Series' outstanding performance and handling makes it a complete and consummate all-rounder - but then the Jaguar XE and Alfa Romeo Guilia arrived

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The G20 3 Series: world leader in waiting?

It’ll be another few weeks until BMW is ready to reveal how the exact technical details of the new 3 Series, codenamed ‘G20’, will depart from its forebear. As background for this taster, however, we were told that it’s a slightly longer and wider car, with a longer wheelbase; and that, having been built on BMW’s Cluster Architecture, it’s made of a higher proportion of aluminium, magnesium and high-strength steel than its predecessor, and is a slightly lighter (up to 55kg) and torsionally stiffer (by 15-20%) car to boot.

The 3 Series’ axle tracks have both grown, with MacPherson strut suspension used up front and a multi-link arrangement at the rear. A wide-ranging overhaul of the suspension and steering hardware has left little untouched. There’s a new ‘variable sport’ steering box (although it isn’t speed-sensitive ‘active steering’, which hasn’t featured on a 3 Series since the E90 generation); there are new optional adaptive dampers from Tenneco if you want them; and there's firmer springing and bushing for cars with M Sport suspension than of like-for-like current-gen cars. But there are no air springs (at least not for the saloon) and no four-wheel steering. Contrary to what you might have read elsewhere, Munich is clearly content to leave features like those at the more expensive end of the executive saloon spectrum.

BMW has, in fact, made an effort to rationalise its investment of new suspension componentry and development resource with this version of the 3 Series; to focus on the hardware that customers actually buy; and to attempt to imbue this version with a simpler, more direct and more discernably sporting character. Dynamically, at least, it aims to head back towards the 3 Series’ roots; and, as roots go, they were pretty good. For an admission of the fact that BMW is in defensive mode, ready to protect the territory it has owned for so long from the likes of Alfa Romeo and Jaguar, look no further than that.

By and large, 3 Series drivers don’t buy adaptive dampers, and so devoting a large proportion of development time to fine-tuning those dampers, as BMW has in the past, just doesn’t make sense. Buyers tend to prefer passive suspension, often with an alloy wheel upgrade. And, this time around, those customers will get struts with both main and auxiliary springs, as well as clever shock absorbers that provide additional damping support at the extremes of wheel travel (for improved rebound control at the front axle and better compression support at the rear).

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“The suspension hardware means we’ve been able to increase the effective spring rate of the M Sport suspension quite a lot, so there’s now twice as big a gap in terms of handling response and body control between cars with standard suspension and M Sport suspension than before,” explained Jos Van As, who leads the 3 Series’ driving dynamics engineering team.

“But we’ve also been able to take initial, low-level damping interference away in the stiffer-sprung version, because we’ve got more progressive control available later in the suspension stroke. That actually makes the car’s ride flatter and more supple, because the suspension’s freer to work and to move to begin with; the body doesn’t jostle or fidget as much. Other manufacturers use ‘selective’ dampers in an attempt to achieve something similar, but those can ‘freeze’ when the suspension inputs pass a certain pretty arbitrary frequency — and when they really needn’t.”

The new 3 Series’ engine range isn’t likely to change too much, according to project insiders, who admit that — in spite of the uncertainties associated with the future market acceptance of diesel or indeed any sort of non-hybrid powertrain — they haven’t attempted to fix what isn’t believed to be broken. The advancements relevant to the 2.0-litre four-cylinder turbo petrol 330i they gave us for testing are, we were told, a reasonable guide for what to expect more widely. It benefits from a 7bhp improvement in power (taking it above the 250bhp barrier) and a 37lb ft increase in torque (up to 295lb ft), with incremental like-for-like gains on emissions and lab test fuel economy likely (although as yet unconfirmed).

While less powerful versions will come with manual gearboxes as standard, at 330i/330d level and above all will be eight-speed automatics. Selected engines will be offered with xDrive four-wheel drive, and one or two might be xDrive only — although BMW won’t say which at this stage.

Stick to standard drive and M Sport trim in your 3 Series, however, and you’ll be offered something that’s in effect been confined to BMW’s dealer-fit accessories catalogue for a while now: a limited-slip differential. The new G20-gen car has a simplified version of the e-diff you’ll find on the current M3 that uses clutches to vector torque between the inner and outer rear wheels. It’ll be available only as part of a package of options, and only in tandem with the car’s more powerful engines. Still, it seems like a very dependable and promising sign that BMW is serious about luring any enthusiast drivers who’ve strayed back into the fold, doesn’t it?

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4 Bmw 330i proto driving

Behind the wheel of the new BMW 3 Series

Whatever kind of sporting driving experience they’re looking for from their executive saloon, owners of the new 3 Series will, I suspect, find what they’re after. Our test drive was quite short and only took in one engine and one combination of wheel, tyre, suspension, steering, transmission and differential. Our 330i prototype had the M Sport passive sports suspension that BMW has worked so hard on, as well as 19in mixed-width M Sport alloy wheels, Michelin Pilot Sport 4 S non-runflat tyres, an automatic gearbox, ‘variable sport’ steering and that new torque-vectoring e-diff.

First impressions? In this configuration, a Giulia probably remains a more compact and lighter-feeling, marginally more incisive and naturally agile saloon. But then, modern BMWs are relatively complicated, more ‘specification-sensitive’ cars than most of their executive rivals; and I wouldn’t be at all surprised to find that, in just the right mechanical trim, this car could dive and swivel left and right just as keenly as its Italian challenger.

It might even entertain better ultimately, given Alfa’s refusal to supply a Giulia with fully switchable electronic aids below the £60k Quadrifoglio level — something that Van As, with whom I drove, couldn’t resist commenting on. “The amount of money that’s gone into the Giulia’s suspension is very impressive,” he said. “It’s a great-handling car — though I’d have tuned it differently. But why spend all that money and then not include a proper ‘off’ button for the stability control? That’s crazy to me. It’s a waste.”

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Although the interior of our 3 Series prototype was covered with disguise almost as thoroughly as its exterior, it was possible to note a few themes about the new cabin. For one, it’ll have some surprisingly flashy, ritzy material touches — no doubt in response to the public’s apparent appetite for the more lavish/chintzy (delete according to personal taste) C-Class. There’s certainly more glossy chrome-effect plastic to be found around the air vents than there is in the current 3 Series.

Lower down the centre console, it seems as if BMW’s had a rethink on how it presents the car’s drive mode buttons, preferring a row of discreet Comfort, Sport, Eco and DSC Off keys to the old rocker switch of the current car. And up ahead, our prototype had a proper digital instrument screen unlike that of its larger BMW contemporaries, because it doesn’t feature fixed chrome bezels. Although we didn’t have the time to fully explore its modes, that fact alone should greatly add to its flexibility and the number of ways in which the display can be configured.

Only certain drive modes were available to try on our test drive, and on a passively suspended 330i M Sport on 19in rims — especially one described in the ‘firmed-up’ terms we’ve already detailed — experience teaches you to have realistic expectations of the car’s Comfort setting. But the new 3 Series rides with a surprisingly settled suppleness and dexterity for something of an explicitly sporting brief.

It does feel a little bit firm at low speeds, and slightly busy over smaller ruts and bumps taken at speed. But it certainly has suspension seemingly capable of working hard within the wheel housings without ruining the level poise of the body until it really needs to. Plenty of Tarmac imperfections are therefore heard but not really felt too much from the driver’s seat — and despite the progressive settings of both spring and damper, the car’s ride frequency feels honest and predictable as the bumps get bigger. The suspension’s outright ability to absorb punishment without running out of travel, meanwhile, is quite remarkable — up there with a really well-sorted hot hatchback.

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After a switch to Sport+ mode (the only other available to test), the 330i’s steering gets meatier and a touch more precise just off centre, without risking the over-assisted pace of the Giulia’s rack or even the initial directness of the XE’s. “At big autobahn speeds, those cars just don’t seem stable enough to me,” said Van As. He explained that BMW always tries to cater for the customer who wants to relax a little at 200kph (125mph); maybe even take one hand off the wheel for a moment when he needs to.

In Sport+ mode, in a familiar story, the 330i’s engine is drowned out by artificial engine sound when you’d sooner listen to the car’s motor, however plain-sounding — but it feels gutsy enough; capable of that level of real-world pace beyond which extra power and pace is hard to use. Responsive, too.

It may not be quite gutsy enough, though, to easily bring to life a chassis that ought to be among the most throttle-adjustable in the class, particularly considering BMW’s equipment of that e-diff. But on that score, we’ll have to wait and see. That’s partly because the 3 Series’ delicacy of handling balance will almost certainly be better on smaller rims than our prototype’s optional 19in wheels, but also because our test car’s DSC Off driving mode (in which the car’s active diff will take on its most aggressive software calibration) wasn’t one of those deemed to be production-ready.

What can we conclude, then? Not a great deal, perhaps; particularly as regards the lower-end petrol and diesel models that the majority of UK owners will drive over the next seven years. And yet we can be encouraged by plenty. The 3 Series is plainly the work of people stirred by competitive instincts, who’ve set out to make the very best driver’s car of its kind — and they may very well have succeeded.

As tested, their 2019 debutant has a carefully honed blend of low-speed agility, high-speed stability, level body control, traction and driveability that makes it feel assured and capable — almost indefatigable, even — when driven hard. Both on road and on track, it showed off levels of outright grip, handling precision and dynamic composure all worthy of a proper ‘performance car’ billing; that is likely to surprise plenty of people coming from a mid-range option and something you won’t find in any other like-for-like executive saloons — whether one or two of them prove to be slightly more engaging or otherwise.

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It’s too early to be sure, but the signs are there; just when it needs to most, the humble 3 Series may be about to rediscover its sporting A game.

8 Bmw 330i proto static

New tech: the next 3 Series’ double-rated dampers explained

Twin-rated passive dampers of one sort or another are fairly common suspension technology, many working through secondary internal reservoirs. Most of them are ‘frequency selective’, and so the damper switches from lesser to greater resistance rates depending not on the overall size of the bump it’s dealing with but is based in effect on the steepness of the bump’s profile: on how quickly it’s forcing oil to move from one chamber to another.

The 3 Series’ passive shocks are different; they ramp up to a secondary firmer setting progressively and only at one extreme of the suspension strut’s range of travel (the rebound end on the front axle and the compression end at the rear). At the front, the effect is achieved though a secondary ring the damper piston has to push against which is governed by a separate hydraulic circuit; at the rear, the piston runs up against a cone-shaped restrictor at the bottom end of the main reservoir.  


BMW 330i M Sport specification

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Engine 4cyls in line, 1998cc, turbocharged petrol; Power 255bhp at 5500rpm (tbc); Torque 295lb ft at 2000rpm (tbc) Gearbox 8-spd automatic; Kerb weight circa 1500kg (DIN, tbc); 0-62mph tbc; Top speed 155mph (limited); Economy tbc; CO2, tax band tbc; Rivals Alfa Romeo Giulia Veloce, Jaguar XE 2.0 i4p 250 R Sport

Matt Saunders

Matt Saunders Autocar
Title: Road test editor

As Autocar’s chief car tester and reviewer, it’s Matt’s job to ensure the quality, objectivity, relevance and rigour of the entirety of Autocar’s reviews output, as well contributing a great many detailed road tests, group tests and drive reviews himself.

Matt has been an Autocar staffer since the autumn of 2003, and has been lucky enough to work alongside some of the magazine’s best-known writers and contributors over that time. He served as staff writer, features editor, assistant editor and digital editor, before joining the road test desk in 2011.

Since then he’s driven, measured, lap-timed, figured, and reported on cars as varied as the Bugatti Veyron, Rolls-Royce PhantomTesla RoadsterAriel Hipercar, Tata Nano, McLaren SennaRenault Twizy and Toyota Mirai. Among his wider personal highlights of the job have been covering Sebastien Loeb’s record-breaking run at Pikes Peak in 2013; doing 190mph on derestricted German autobahn in a Brabus Rocket; and driving McLaren’s legendary ‘XP5’ F1 prototype. His own car is a trusty Mazda CX-5.

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405line 22 August 2018

Specifically turbo'd

All I can say is if you take a 4 cylinder 2 litre engine and expect it to work well when its being asked to produce @125 bhp per litre, day in day out it will be unreliable that's just pure engineering facts and it comes as no surprise that the manufacturer is being held to account when they think they only have to make cars "reliable" for the warranty period. This is not a personal attack on any of the comments made, it is an engineering comment and when I commented that this would be the case many people told me to "go eat my shoes".

spqr 17 August 2018

Symanski Sundym

Fully aware of different consumer laws in the UK and the USA. That is why you were in the position you were in. You  clearly do no understand that. Also the engine recalls in the USA were for a different engine to yours. Tried to point that out. Again you are not getting that. To be brief - give it a rest. As for Sundym and his Trumpisms - hogwash, lots of people are fed up with Symanski and his tripe about a duff car he may have owned 10 years ago, but constant attacks on the reputation of companies and people is very Trump. 

Symanski 17 August 2018

Same family.

spqr wrote:

Fully aware of different consumer laws in the UK and the USA. That is why you were in the position you were in. You  clearly do no understand that. Also the engine recalls in the USA were for a different engine to yours. 


Obviously you don't appreciate that it was of the same family and generation of engines.   The same parts are used on both and were warranted out to ten years, which would have easily covered my car.   In the USA because they have both better consumer laws, and more importantly, BMW have been forced by their customers in the USA to support them.   Something that we in Britain & Europe should learn from.


The recalls in the USA were for the same engine parts.   It's not a difficult concept, is it?


spqr 16 August 2018

Symanski and Sundym?

Looks like Symanski has a second Autocar sign in as Sundym. Particular give away - the use of “ym” in the user name. Biggest give away - griping on and on about BMW engines. Again. 

Sundym 17 August 2018


Straight from the Trump playbook, someone passes a comment you don't like and immediately its a conspiracy and two entirely different commentators are the same person . Fyi sundym was a tinted glass heavily optioned on BL cars on the 70s , I could change my user name to rostyle (style of wheel) if that makes you happier . Back to the point I like bmw , I'm just wary of their reliability . I could really bore you with my cooper s engine woes , also a well known design flaw exacerbated by too long service intervals, but technically that's a crappy peugeot engine not bmw . So there you have it , I can moan about different brands !
Symanski 17 August 2018

Sorry, but not true.

spqr wrote:

Looks like Symanski has a second Autocar sign in as Sundym. Particular give away - the use of “ym” in the user name. Biggest give away - griping on and on about BMW engines. Again. 


Sorry to spoil your theory but I have only one sign-in on Autocar.   If all the evidence you've got is two letters in a sequence you really are grasping at staws!


Or could it also be that BMW engine problems aren't as rare as you'd like to believe?