BMW Z4 VS Mercedes-Benz AMG GT
BMW Z4
Likes
- Bold exterior styling
- Ultra-refined
- Surprisingly spacious
Dislikes
- A bit too serious to be fun
- SUV-like interior
- Ownership could be better
Mercedes-Benz AMG GT
Likes
- Superb dynamics
- Sexy looks
- Fast
Dislikes
- Small boot
- Short warranty
- Getting out on your hands and knees
Summary
BMW Z4
I remember the first Bond film I ever watched.
I was about eight or nine years old, and it was GoldenEye on VHS. In that film, Pierce Brosnan drove a BMW Z3 convertible, which obviously oozed cool.
I didn’t know at the time that it was just a little bit weird that he wasn’t driving an Aston Martin for the entire duration of the movie, but it didn’t matter, that drop-top Beamer with its radar and missiles imprinted itself on my mind.
As such, I’ve always had a soft spot for BMW’s 'zed' range, so I was quite keen to helm this new one as it came through the CarsGuide office, especially since it shares its underpinnings with the new Toyota Supra.
So, is the new Z4 a case of never meet your heroes? Or did it make me feel a little bit like a secret agent? Read on to find out.
| Safety rating | |
|---|---|
| Engine Type | 2.0L turbo |
| Fuel Type | Premium Unleaded Petrol |
| Fuel Efficiency | 6.5L/100km |
| Seating | 2 seats |
Mercedes-Benz AMG GT
"A racing car with street legal approval". Those are the words Mercedes-AMG uses to describe its GT R Coupe.
And even though I'm a forty-something, professional motoring journalist who's well aware of marketing speak when he reads it, the 15-year old in me was jumping around whooping and shouting: "Key! Gimme key to race car" at the launch of the updated Mercedes-AMG GT coupe which also included time in the more sedate GT C.
Well, that's like calling a Tiger Shark more sedate than a Great White, because the GT C still packs more than 400kW (550hp).
As will be the case with most buyers, my time in the Mercedes-AMG GT was spent entirely on the road, the closest we came to a racetrack was driving through Kilmore, and that one was for horses.
This was perfectly fine because you'll want to know just what these beasts are like to pilot on regular roads... roads where surfaces are far from perfect and the posted limits are hundreds of kilometres below the top speeds of these cars.
| Safety rating | |
|---|---|
| Engine Type | 4.0L turbo |
| Fuel Type | Premium Unleaded Petrol |
| Fuel Efficiency | 11.4L/100km |
| Seating | 2 seats |
Verdict
BMW Z47.5/10
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.
What do you make of the Z4’s looks - Is it an icon or too far from BMW’s roots? Share your thoughts in the comments below.
Mercedes-Benz AMG GT8.1/10
The AMG GT is better than a race car for the road because it offers all the comfort and luxury that is completely absent in a track car, yet retains superb dynamic ability – particularly the GT R.
As for the sweet spot, that's easy. The C Coupe offers the best of the S and R from a comfort and handling perspective, while being super quick for less money that the top grade R.
If you could have any of them, which Mercedes-AMG GT in the line-up would you pick? Tell us what you think in the comments below.
Design
BMW Z48/10
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.
Mercedes-Benz AMG GT10/10
There is nothing not interesting about the design of the AMG GT with its long bonnet and low, wide stance. The look is not as dramatic as the SLS AMG, which went into retirement five years ago, nor does it have that supercar's 'gullwing' doors. But there's a clear family resemblance to it and also the iconic 300SL beauty from 1954.
If anything, the AMG GT is a meaner and sharper looking beastie, but still dripping in exotic styling with the hungry looking 'Panamericana' grille flanked by hornet eye headlights and enormous wheel guards that push up into the bonnet to form pontoons over which the driver peers.
It's hard to tell from the images if the AMG GT is big or small, but the dimensions don't lie. The AMG GT is 4551mm end-to-end, 2007mm wide for the GT R and GT C but 1939mm for the GT S (and between 1260mm and 1288mm tall depending on the grade, making it fairly long, wide and short in stature.
There are three grades to choose from - the GTS, GT C and GT R – which all come as coupes, while only the GTC is available as a soft-top roadster, as well.
I can't think of a convertible which doesn't look better with the roof down than with it up and the GT C is no exception to this rule. The open top suits this cruiser's look perfectly.
Telling the three grades apart is easy if you know what to look for: the GT S is a 'narrow body', the GT C has wider rear guards and the GT R has wide rear and front guards.
From behind there's a smoother rear treatment to the S with no wide black vent between the tail-lights, while the GT C has vents behind the rear wheels and the GT R has the most aggro look with the giant diffuser and a central tailpipe.
Exterior styling has stayed the same save for the new LED headlights, wheels and paint colours, but it's the cabin where most of the design changes have taken place.
There's the new steering wheel with drive mode dials and a redesigned centre console with buttons configured in a V-shape which according to Mercedes-AMG is a nod to the V8 engine.
I'm not convinced by the restyling of the console, which didn't suit me ergonomically. It seems to centre around the two cupholders, places the shifter awkwardly rearwards of the media controller and puts the traction control button directly under the driver's elbow. The black piano plastic in the GT R also became smudged with fingerprints quickly.
Practicality
BMW Z48/10
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.
Mercedes-Benz AMG GT6/10
All AMG GT Coupes and Roadsters have two doors and two seats. If you need seating for more there's the AMG GT 4-door which can fit five adults (well, four comfortably) and competes with the Porsche Panamera.
So, if it's just you and a significant other you'll be happy to know the AMG GT cockpit is spacious and even at 191cm tall and with the same wingspan I had more than enough head, shoulder, elbow and legroom.
Cabin storage is limited to a pair of cupholders, a small centre console bin and door pockets just wide enough for a small bottle of water.
Boot space in the Coupe is 175 litres and 165 litres in the Roadster. That was just enough room for the two airline overhead luggage-sized wheelie bags belonging to myself and co-pilot.
As for charging and power on board there are three USB ports and one 12-volt outlet.
Price and features
BMW Z47/10
The Z4 isn’t cheap, but it plays in a field of expensive Deutsche drop-tops. Our car was the mid-spec 30i which comes in at an MSRP of $104,900 (before on-road costs).
For that you’ll get a more highly tuned version of the base 20i’s four-cylinder turbocharged engine, producing 190kW/400Nm, 19-inch alloy wheels, M Sport brakes, Adaptive M suspension, and adaptive LED headlights.
That’s on top of the already impressively-specified 20i’s kit which includes dual 10.25-inch screens – one for the multimedia functions, the other as a digital dashboard, a head-up display, full Vernasca leather interior trim, auto-dimming rearview mirror, power adjustable and heated front seats with memory function, dual-zone climate control, 10-speaker 205W stereo, a Qi wireless charging pad, and adaptive cruise control as part of a marginally upgraded safety package (more on that in the safety section).
It’s a pretty plush set of equipment, although a challenging value proposition as the almost-as-well-equipped 20i starts from $84,900, a full $20k cheaper.
Rivals for this 30i model? You’ve got the soon-to-be-discontinued Mercedes-Benz SLC300 ($102,500), all-wheel drive Audi TT S quattro ($105,661), and, at a stretch, the entry-level Porsche Boxster ($122,960).
Of course, being a premium European car, there is an extensive options list. Our car was fitted with the excellent and probably-worth-the-money M Sport differential ($2400), as well as the rudely priced M seat belts (literally just the M pattern embroidered in - $560!) and interior ambient lighting package (lovely, perhaps not worth $550).
The Z4 is only offered in five colours, three of which – including our car’s Black Sapphire – come at a cost of $2000. The red interior, surprisingly, is a no-cost option.
If you’re keeping track that brings the car you’re looking at here to $110,410. Not cheap, and it doesn’t have six-cylinders - but given its other attributes explored later in this review, the fact that it still manages to undercut an entry-level Boxster is actually reasonable.
Mercedes-Benz AMG GT8/10
The entry point into the three model range is the GT S Coupe with its $311,142 list price.
Stepping up to the GT C will cost $329,843 for the Coupe and $355,242 for the Roadster, while the GT R king of the castle commands a list price of $361,042.
Standard features on the S include nappa leather upholstery, heated and power-adjustable seats, AMG Performance steering wheel, panoramic sunroof, 10-speaker Burmester sound system, a 10.25-inch touchscreen with sat nav, Apple CarPlay and Android Auto, 'Mercedes Me' connect system, a 12.3-inch virtual instrument cluster, LED headlights, plus alloy wheels (staggered 19-inch at the front and 20-inch at the rear) with a matt black finish.
You'll see all these S features on the GT C along with more in the form of AMG Performance seats, AMG Performance steering wheel clad in 'Dinamica' microfibre, heated and ventilated seats and staggered 19-/20-inch alloys in titanium grey.
The GT C Roadster has identical features but adds a neck heater, which works surprisingly well.
The GT R comes with the GT C's features and brings its own in the form of the AMG 'Interior Night' package, a carbon-fibre roof, static rear wing and yellow brake calipers.
Porsche's 911 GT3 is a good rival for the AMG GT R, but undercuts it by about $35K, while a Jaguar F-Type SVR is $297,242 and Audi's R8 tops out at $425,500 for the Spyder.
So, is the AMG GT good value? Sure is, when you consider what you're getting relative to what the competitors are offering.
Under the bonnet
BMW Z48/10
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.
Mercedes-Benz AMG GT9/10
All AMG GTs have a 4.0-litre twin-turbo V8 with three states of tune: in the S it makes 384kW/670Nm; in the C it produces 410kW/680Nm; while the output in R is 430kW/700Nm.
A seven-speed dual-clutch automatic transmission is used in all three grades.
All three grades have top speeds of more than 300km/h (318 in the R Coupe; 317km/h in the C Coupe; 316km/h in the C Roadster and 310km/h in the S Coupe) and 0-100km/h times of less than four seconds (R -3.6s, C - 3.7s, S - 3.8s).
Before you start wondering why the R costs $30K more to go one kilometre per hour faster than the C we need to talk about the hardware under the cars that makes the top-grade AMG GT worth the extra money in the section below.
Efficiency
BMW Z47/10
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.
Mercedes-Benz AMG GT7/10
This might surprise you, but the official combined fuel consumption of the AMG GT S is 9.5L/100km, while the GT R's is 11.4L/100km, and the GT C's is 11.5L/100km.
The best combination of driving over motorways and country roads for me on this launch was in the GT R, and after a couple of hundred kilometres the trip computer told me the car was using an average of 12.9L/100km.
Driving
BMW Z48/10
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.Â
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.
Mercedes-Benz AMG GT9/10
The only grade missing at the launch of the updated AMG GT was the S Coupe. So, while I'm sure it's darn good, I can really only comment about the driving experience of the R Coupe and the C in Coupe and Roadster forms in which we devoured hundreds of kilometres.
First, the R and C both have unique characters that go beyond just differences in horsepower.
The GT C uses the front axle set-up of the GT S with its aluminium double wishbone suspension, anti-dive, coil springs and stablisier bar offering a more supple and cushioned ride, and combines this with the rear axle of the GT R with its rear-axle steering and more pinned down dynamic focus.
The GT R's front axle is also aluminum double-wishbone but comes with braking torque support, mechanically stepless adjustable coil springs, adaptive dampers and an anti-roll bar.
So, while the GT C and GT R feel different to pilot, it's not night-and-day different... more early summer morning sunrise, and midday sun beating down different, if you know what I mean.
See, while the GT C feels just as quick, it's a far more comfortable and easier car to drive on course-chip bitumen and pock-marked Australian roads. The ride while rolling on 265/35 R19 rubber at the front and 305/30 R 20s at the rear is surprisingly pleasant.
Country road corners beckoned on our journey out of Melbourne and the GT C Roadster I set out in responded superbly. That front end felt light, soft and but pointable. What was immediately apparent was how wide the car is, and it felt like the GT C needed every millimetre of the narrow Aussie lanes.
Top down there was almost zero air turbulence in the cabin and while I kept an eye out for the scuttle shake that can come with a convertible, I barely noticed anything along those lines with those short thick A-Pillars holding firm.
Also holding firm was the GT C's rear end which squatted and held tight in the corners even with getting on the gas the roadster stayed composed.
Roof up, most road noise was shut out, well it was hard to hear anything over the bellow of that V8.
The GT C Coupe would be my pick of the AMG GT family and not just because of that smidge of extra boot space. The hardtop just bolsters the overall rigidity of the car and made it feel tauter.
The GT R is a step up in price, grunt and dynamic ability, but it's asking for a higher level of commitment in terms of livability.
The ride on its firmer suspension and 275/35 R19 rear tyres and 325/30 R 20 front rubber makes the GT R more brutal than most people would be happy to live with, I think.
But in return you are getting close to that "racing car with street legal approval" positioning, because the GT R is astounding in its balance, handling, grip and the connection it offers with the driver.
Truly engaging and almost wasted on a regular road, but why it's not quite a race car is that the cabin is dripping in luxury from the beautiful and supportive standard seats, to the leather upholstery and digital instrument cluster.
Safety
BMW Z48/10
Convertibles and safety don’t often fall in the same sentence, unless its one where a concerned relative is trying to convince you not to buy one.
In any case, the Z4 benefits from four airbags (dual front and dual side), as well as the expected electronic stability controls. That optional M Sport differential will have the added bonus of preventing any unexpected slip and slide at the rear.
On the active side the Z4 gets ‘Driving Assistant’ which includes forward collision warning (FCW), lane departure warning (LDW), rear cross traffic alert (RCTA), and rear collision warning. The 30i grade also gets 'active cruise control with stop & go' which allows for full auto emergency braking (AEB) with pedestrian and cyclist detection. Not on the spec sheet, but apparently present in the car I drove was some form of traffic sign recognition (TSR) and lane keep assist (LKAS).
A nice high-res reversing camera displayed on the massive touchscreen is a welcome standard addition.
Considering the meagre safety specification of most convertible cars, the Z4 30i shines with a half-way decent active safety suite. But you can forget ISOFIX child-seat anchor points. There aren't any.Â
Mercedes-Benz AMG GT9/10
Coming standard on all AMG GTs is AEB, blind spot warning, lane keeping assistance, traffic sign recognition and adaptive cruise control.
All cars in the line-up come fortified with airbags, including a knee bag for the driver, side bags for the driver and passenger (combined thorax/pelvis bag), front airbags and window bags (Coupe only).
Front and rear cameras and auto parking make life easy, and while there's no spare wheel there is an inflation kit for temporary puncture repair.
A two-seater car the AMG GT doesn't have anchor points for child seats.
The AMG GT has not been assessed by ANCAP or Euro NCAP for its crash safety performance.
Ownership
BMW Z46/10
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.
Mercedes-Benz AMG GT7/10
The AMG GT has a three-year unlimited/kilometre warranty and along with BMW and Audi it's short compared to the coverage offered by more affordable brands.
Servicing is recommended at 20,000km/12-month intervals. Mercedes-AMG offers a three-year plan which costs $3750 up front or you can pay as you go with capped price servicing at $800, $1000 and $2950 for each respective year.