BMW Z4 vs Alfa Romeo 4C

What's the difference?

The Z4 didn’t make me feel like Peirce Brosnan’s 007. It’s way too serious – a proper gritty reboot. Maybe it’s meant for Daniel Craig. Either way, its brave design makes it one of the best-looking BMWs of recent memory, and it’s a tech- and comfort-fest that the Bavarian automaker should be proud of. I just wish it was a smidge more fun behind the wheel.

People might wonder if there’s a reason to buy an Alfa Romeo 4C. It has some great dollar-for-dollar competitors - the Alpine A110 does most of the things the Alfa does, but in a more polished way. And then there’s the Porsche 718 Cayman, which is a considerably more, well, considered option.

But there is no doubt the 4C stands alone, a sort-of cut-price alternative to a Maserati or Ferrari, and nearly as rare to spot on the road as those cars, too. And just like the rollercoaster at Luna Park, it’s the sort of car that’ll leave you wanting another go.

The Z4 is a sight to behold. It’s brave, especially for a BMW, it even betrays the brand’s strongest styling pillars, making its own way with its more horizontal grille design, flat body and curved out rear.

It’s more than that, though. In black, this car looks sinister, brooding. The more you look at it, the more you notice tiny details - the scooped-out sides, or the way the entire rear seems to flick up into the integrated spoiler. I couldn’t get enough of staring at it – it manages to look even better with the roof down.

That’s probably when it hit me. To my eyes, at least, this is the most stunning BMW in years. Sure, the X7 is a sight to behold due to its sheer dimensions and borderline offensive grille, but the Z4 is the opposite. It’s subtle, it hides its details away in its silhouette.

It’s designer, Calvin Luk (an Australian no less), was inspired at least in part by the Z8 – another Brosnan bond car – and you can see the Fisker design reflected in the Z4’s low, flat grille and almost bulbous rear.

Inside, sadly, the Z4’s strong design doesn’t quite play out. There’s no wily Fisker touches here, just a standard set of BMW switchgear. While it all works well, it just dumbs down the Z4’s character.

The big, chunky steering wheel in particular is a let-down. It’s the same wheel that sits in the brand’s X5 SUV, and it feels right there, but not here in a convertible where you’re so close to the ground. A smaller wheel would not only suit this car better, it would make it feel just a smidge more alive. I miss the three-spoke M sport wheel from previous-generation BMW cars.

I do like the dash, which is seemly carved from rhomboid shapes - a theme that rolls into the doors, screens, and vents elegantly. I’m normally not a fan of gloss plastics and chrome touches, but in the Z4 they’re all tastefully applied.

The seats, too, are lovely. I’m not sure about the contrast bright-red leather our car came with, but they’re nice and close to the ground and have excellent trim that you seem to sink into just enough to be comfortable and sporty all at once.

It’s a slick place to be, I just wish it felt less like you were at the helm of an SUV and more like you were driving something that looks this damn good.

Slap a Ferrari badge on it, and people would think it was the real deal - a pint-sized performance hustler, with all the right angles to get plenty of glances.

In fact, I had dozens of punters nod, wave, mount ‘nice car mate’ and even a few rubber-neck moments - you know, when you drive past and someone on the footpath can’t help but forget they’re walking, and they stare so hard they might well collide with the upcoming lamp-post. 

It really is a head-turner. So why does it only get an 8/10? Well, there are some elements of the design that make it less user-friendly than some of its rivals.

For instance, the step-in to the cabin is enormous, because the carbon-fibre tub sills are huge. And the cabin itself is pretty tight, especially for taller people. An Alpine A110 or Porsche Boxster are much more amenable for day-to-day driving… but hey, the 4C is markedly better than, say, a Lotus Elise for ingress and egress.

Also, as smart as it still looks, there are elements of Alfa Romeo design that have moved on since the 4C launched back in 2015. The headlights are the bit that I dislike most - I had a real thing for the spider-eyes lights of the launch edition model.

But even if it isn’t unmistakably Alfa Romeo, it’s unmistakably a 4C. 

The Z4 is a convertible, so it’s naturally compromised on space. As far as convertibles go though, you’ll be hard pressed to find one you can fit more stuff into.

The Z4 is wide - the same width, in fact, as a 5 Series - and this carries into the cabin. There are only two seats, but those seats are wide, and occupants will find themselves with luxurious amounts of airspace for their arms, as well as excellent leather-trimmed and padded surfaces for landing elbows on.

Legroom is also great, as the seats have a surprising amount of rail-travel on them, so that even taller folk won’t struggle to fit their limbs in.

A genuinely impressive characteristic of the Z4 is much head room there it is. Despite its low-slung looks from the outside, the roof towers over my 182cm tall head when I’m inside, so this isn’t one of those convertibles that feels like braking too hard might simply decapitate those above six-foot tall.

In terms of storage areas you get some long but shallow trenches in the doors, a bay with connection ports and a Qi wireless charging pad under the air-conditioning controls, a glovebox (hey, not all convertibles have them) and a trick centre console that houses two deep cupholders inside.

There’s also a netted shelf behind the seats that could fit small bags, and given the length of the cabin, you could even fit laptops and the like behind the seats provided you haven’t used the full extent of the seat’s rearward movement.

The boot is deep, wide and long for a drop-top, and offers a total of 281-litres which is more than some popular hatchbacks. It even offers tie-down points and netting either side. To top it off, the fabric roof folds away into its own compartment, so the boot space is unaffected if you choose to drop the lid.

For a convertible – the Z4 is a practicality wizard.

You can’t get into a car this small and expect a lot of space.

The dimensions of the 4C are tiny - it’s just 3989mm long, 1868mm wide and only 1185mm tall, and as you can see from the pictures, it’s a squat little thing. The Spider’s removable roof could be great for you if you’re tall.

I’m six-feet tall (182cm) and I found it to be cocoon-like in the cabin. You feel almost as though you’re tying yourself to the tub of the car when you get into the driver’s seat. And getting in and out? Just make sure you do some stretches beforehand. It’s not as bad as a Lotus for ingress and egress, but it’s still hard to look good clambering in and out of. 

The cabin is a cramped space. There’s limited head room and leg room, and while there is reach and rake adjustment for the steering wheel, the seat only has manual slide and backrest movement - no lumbar adjust, no height adjust… almost like a racing bucket. They’re hard like a race seat, too. 

The ergonomics aren’t terrific - the controls for the air-con are hard to see at a glance, the buttons for the gear select take some learning, and the two centrally-mounted cup holders (one for your double-shot mocha latte, the other for a hazelnut piccolo) are inconveniently positioned exactly where you might want to put your elbow. 

The media system is rubbish. It’d be the first thing to go, if I bought one of these, and in its place would be an aftermarket touchscreen which would: a) actually let you pair to Bluetooth; b) look like it was from sometime after 2004; and c) be more fitting for a car of this price tag. I’d upgrade the speakers, too, because they’re poor. But I can totally understand if those things don’t matter, because it’s the engine you want to hear.

The materials - aside from the red leather seats - aren’t great. The plastics used are similar in look and feel to what you find in second-hand Fiats, but the sheer volume of exposed carbon-fibre does help you forget those details. And the leather pull straps to close the doors are nice, too. 

The visibility from the driver’s seat is decent - for this type of car. It’s low, and the rear window is small, so you can’t expect to see everything around you at all times, but the mirrors are good and the forward vision is excellent.

Look, no-one considering an Italian sports car is likely to be wearing their common sense hat, but even so, the Alfa Romeo 4C Spider is an indulgent purchase.

With a list price of $99,000 plus on-road costs, it isn’t affordable. Not considering what you get for your money.

Standard inclusions consist of air conditioning, remote central locking, heated electric door mirrors, leather sports seats with manual adjustment, a leather-lined steering wheel, and a four-speaker stereo system with USB connectivity and Bluetooth phone and audio streaming. It’s not a touchscreen, so there’s no Apple CarPlay or Android Auto, and there’s no sat nav… but the thing about this car is going the fun way home, so forget maps and GPS. And there’s a digital instrument cluster with a digital speedometer - believe me, you’ll need it.

The standard wheels are a staggered set - 17-inch at the front and 18-inch at the rear. All 4C models have bi-xenon headlights, LED daytime running lights, LED tail-lights and dual exhaust tips. 

Of course, being the Spider model, you also get a removable soft top and you know what’s neat? You get a car cover included as standard, but you’d want to put it in the shed, as it takes up a bit of boot room!

Our car was even further up the pay scale, with an as-tested price of $118,000 before on-roads - it had a few option boxes ticked. 

First there’s that beautiful Basalt Grey metallic paint ($2000), and those contrasting red brake calipers ($1000).

Plus there’s the Carbon & Leather package - with carbon-fibre mirror caps, interior bezels, and a stitched leather instrument cover panel. It’s a $4000 option.

And finally, the Racing Package ($12,000), which includes a staggered set of 18-inch and 19-inch wheels with a dark paint finish, and those wheels are fitted with model specific Pirelli P Zero tyres (205/40/18 up front, 235/35/19 at the rear). Plus theres the sports racing exhaust system, which is awesome, and a racing suspension setup. 

Welcome to the age of ridiculously powered four-cylinder turbo engines. Despite a capacity of just 2.0-litres, the engine in the Z4 30i produces a whopping 190kW/400Nm.

That’s probably enough for a car this size. I’m keen to drive the six-cylinder, but surprisingly it seems to offer diminishing returns for extra cylinders offering a 60kW/100Nm power boost for an extra $20,000. Perhaps a six-cylinder is the way to go in a BMW, and given this car’s other seriously sporty attributes, it might be the only way to make it a bit more… fun. More on that in the driving section.

All Z4s are rear-wheel drive, using an eight-speed torque converter automatic. Sorry, no option for a manual this time around.

The Alfa Romeo 4C is powered by a 1.7-litre turbocharged petrol four-cylinder engine, which produces 177kW of power at 6000rpm and 350Nm of torque from 2200-4250rpm. 

The motor is mounted amidships, and it is rear-wheel drive. It uses a six-speed dual-clutch (TCT) automatic with launch control. 

Alfa Romeo claims a 0-100km/h time of 4.5 seconds, which makes it one of the quickest cars at this price point. 

It’s claimed that the Z4 will drink just 6.5 litres per 100 kilometres on the official combined cycle test, but I found that sticking my foot in occasionally resulted in a slightly more realistic sounding figure of 8.4L/100km.

That’s still a great fuel consumption number for a car like this, and perhaps one of the strongest benefits of having just four cylinders.

A discerning vehicle, the Z4 will drink nothing less than the best-quality 98RON unleaded to fill its 52-litre tank.

Claimed fuel consumption for the Alfa Romeo 4C Spider is rated at 6.9 litres per 100 kilometres, so it’s no miser.

But, impressively, I saw real-world fuel economy of 8.1L/100km, over a loop that included urban, highway and ‘spirited’ driving on twisty roads.

A car that looks this good better live up to the promise behind the wheel, right?

For the most part, the 30i does, but it’s a victim of its own performance credentials and luxuriousness.

See, a drop-top should be fun-packed, you should feel close to the road, connected. Sadly, a combination Z4’s excellent suspension and not-so-excellent SUV-like interior separates you too much from the surface below.

An advantage, of course, is the refinement on offer. The Z4 is easily one of the quietest, most refined convertibles I’ve ever driven, but it’s a little too insulated.

I can’t help but feel like it’s all business and no pleasure. It feels a little more like I should be cruising to work on the autobahn and a little less like I should be flinging it around corners on a tight B-road.

It feels almost wrong to drive it in a T-shirt. It’s serious and doesn’t want you to mess around, it wants you to wear a suit and tie.

This grand-tourer style feel is one that will keep a lot of buyers in the premium space happy, but I’m of the opinion that BMW will have that segment well and truly covered by the new 8 Series. If the budget allows.

Regardless, the 30i’s four-cyl engine feels like any six-cylinder would have a few years ago. It’s got a surge to it in the straights that’s quite satisfying, and it responds via the exhaust with an angry tone that makes it feel a little more alive, especially with the roof down.

This feeling was all helped along by our car’s M active differential which simply won’t let the fat tyres at the rear slide unless you’ve got high-speeds and loads of tarmac to play with – for better or worse.

The Z4 also has ‘variable sport steering’ which reacts to the car’s speed and position of the wheels to adjust the input ratio. It’s good when you’re at speed, but the weight and response of the steering can make the Z4 feel bigger than it actually is at lower speeds. 

The suspension is firm, and can be a little bouncy over rough surfaces, but seems well suited to the Z4’s chassis.

Other than those notable characteristics you’ll find that the Z4 is wonderfully tuned in terms of its inputs, everything is slick and smooth, suited perfectly for long meandering drives.

I said that it’s like a rollercoaster, and it really, truly is. The air doesn’t quite rush through your hair as much, sure - but with the roof off, the windows down and the speedometer constantly edging towards licence suspension, it’s a real hoot of an experience.

It just feels so tight - the carbon-fibre monocoque chassis is rigid and super stiff. You hit a cats-eye and its all so sensitive, you could mistake it for having hit an actual cat. 

Alfa Romeo’s DNA drive modes - the letters stand for Dynamic, Natural, All Weather - is one of those proper examples of this type of system done well. There’s a marked difference between how these different settings operate, where some other drive modes out there are more sedate in their adjustments. There’s a fourth mode - Alfa Race - which I didn’t dare sample on public roads. Dynamic was enough to test my mettle. 

The steering in Natural mode is lovely - there’s great weighting and feedback, super direct and incredibly in touch with the surface below you, and the engine isn’t quite as zesty, but still offers tremendous response on the move. 

It’ll be a difficult choice between this and Alpine A110 and a Porsche Cayman

The ride is firm but composed and compliant in any of the drive modes, and it doesn’t have adaptive suspension. It is a stiffer suspension setup, and though the damping doesn’t change in Dynamic mode, if the surface is anything but perfect you will tram-track and twitch all over the place, because the steering feels even more dialled in. 

In Dynamic mode the engine offers amazing response when you’re at pace, building speed incredibly and before you know it, you’re in licence loss zone.

The brake pedal requires some firm footwork - just like in a race car - but it pulls up strongly when you need it to. You’ve just gotta get used to the pedal feel. 

The transmission is a good thing at speed in manual mode. It won’t overrule you if you want to find the redline, and it sounds tremendous. The exhaust is exhilarating!

With roof on and windows up there’s very noticeable noise intrusion - lots of tyre roar and engine noise. But remove the roof and drop the windows and you get the full effect of the drive experience - you’ll even get some "sut-tu-tu” wastegate flutter. It doesn’t even matter that much that the stereo system is so rubbish.

At normal speeds in normal driving you do need to be considerate of the powertrain because it is finnicky and slow to react at times. There’s notable lag if you’re gentle on the throttle, both from engine and transmission, and the fact peak torque doesn’t come on song until 2200rpm means there’s lag to contend with. 

It’ll be a difficult choice between this and Alpine A110 and a Porsche Cayman – each of these vehicles has a very different character. But for me, this is the most go-kart like and it is, undeniably incredibly involving to drive.

You’re in the wrong spot if you want the latest in safety technology. Sure, it’s at the cutting edge because it has an ultra strong carbon-fibre design, but there’s not much else happening here.

The 4C has dual front airbags, rear parking sensors and an alarm with tow-away protection, plus - of course - electronic stability control. 

But there are no side airbags or curtain airbags, there’s no reversing camera, there’s no auto emergency braking (AEB) or lane keep assist, no lane departure warning or blind spot detection. Admittedly - there are a few other sports cars in the segment which lack safety smarts, too, but 

The 4C has never been crash tested, so there’s no ANCAP or Euro NCAP safety score available.

If recent quotes are anything to go by BMW is set to stick by its lacklustre three-year unlimited kilometre warranty, as it says its customers simply aren’t interested in five years (or longer) when it comes to warranty coverage.

It’s a shame, as even Volkswagen has upped its warranty to five years, and Mercedes has considered a 10-year coverage plan in the past.

In terms of servicing, there are two fixed-price plans available – the suspiciously cheap ‘Basic’ plan which comes at a cost of $1373 for five years (or $274.60 per year) and the more realistic-sounding ‘Plus’ which costs $3934 over five years (or $786.80 per year).

Like every other BMW, the Z4’s computer tells you when its service time: how often it needs maintenance will depend on how often – and how hard – you drive it.

If you’re hoping that a ‘simple’ car like the 4C will mean low ownership costs, you might be disappointed in this section.

The Alfa Romeo website service calculator suggests that over 60 months or 75,000km (with service intervals set every 12 months/15,000km), you will have to fork out $6625 total. For a breakdown, the services cost $895, $1445, $895, $2495, $895.

I mean, that’s what you get when you buy an Italian sports car, I suppose. But consider you can get a Jaguar F-Type with five years of free servicing, and the Alfa looks like a rip-off. 

The Alfa does, however, come with a three-year/150,000km warranty plan, which includes the same cover for roadside assist.