BMW 6 Series VS Mercedes-Benz AMG GT
BMW 6 Series
Likes
- Heaps of space
- Feels plush
- Good standard equipment
Dislikes
- Expensive
- Feels big on the road
- A bit of a weird car, really
Mercedes-Benz AMG GT
Likes
- Superb dynamics
- Sexy looks
- Fast
Dislikes
- Small boot
- Short warranty
- Getting out on your hands and knees
Summary
BMW 6 Series
What happens when you struggle to sell an odd-bod, not-quite-a-coupe, sort-of-a-hatchback, almost-an-SUV model? Well, sometimes it gets axed, and replaced with a new model that bears a new name.
That's pretty much it in a nutshell for the BMW 6 Series Gran Turismo, which was formerly the 5 Series GT. It essentially takes the place of the 6 Series Gran Coupe - an alternative to the regular 5 Series sedan that's more attainable than a 7 Series limousine.
Confused? It's not as difficult as all that sounds - you just need to know that this model, the 2018 BMW 6 Series Gran Turismo, is supposed to offer a neat alternative to the go-to family luxury car or SUV.
I spent some time in the entry-level 630i to see if it can deliver on that promise. In fact, I spent more than 24 hours driving the BMW 6 Series GT over the past week, and I don't have a sore back, I haven't been left scratching my head over the intended purpose, I haven't been uncomfortable, and I haven't been left wanting for much.
| Safety rating | |
|---|---|
| Engine Type | 2.0L turbo |
| Fuel Type | Regular Unleaded Petrol |
| Fuel Efficiency | 7L/100km |
| Seating | 5 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 6 Series7.6/10
This isn't a car for everyone's tastes, but if you fit in to the buyer group that just doesn't really know what they want in a luxury car, it could be the perfect fit for your family. The 6 Series GT is a practical large prestige car, albeit one that will likely find very few buyers.
Would you consider a genre-bending car like the BMW 6 Series GT? Let us know in the comments section 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 6 Series7/10
There is no denying the 6 Series GT looks better than the old 5 Series GT. It isn't as frumpy, it looks more sporty, and to me it appears to have grown into its identity with more conviction than its predecessor.
That said, I don't necessarily like the look very much - it's a bit like a BMW X6 that has been rounded off a little and lowered down substantially. But I can appreciate some of the finer design aesthetics that it offers up: the frameless windows are a nice touch, and the swooping roofline looks smoother than a duck's back.
Other things like the active grille shutters and the air breathers ahead of the front doors are nice functional touches, and to my eye it lives up to BMW's hope of it looking "smooth but muscular". You can get the 630i with either the M Sport package, like you see here, or the more sedate Luxury Line, which is, well, more luxurious looking.
The M Sport styling and equipment package you see in the images here - with M aero kit and 19-inch wheels (ours had been upgraded to optional 20s) - help out with the athletic look of this very big vehicle.
It's huge in fact. The length of the 630i is 5091mm long, it measures 1902mm wide and sits at 1538mm tall, with a lengthy 3070mm wheelbase.
All that equates to a lot of room in the cabin, and what a sumptuous and delightful place it is to be - leather, wood and plush finishes abound.
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 6 Series9/10
Now, I said before that this is a bit like an X6, but it has heaps better interior space than that SUV.
As soon as you slide into the driver's seat, you feel like your inside a large car. The cabin space is plentiful, and there's an abundance of storage on offer, too: there's a split-lid armrest between the seats, a pair of cupholders, a phone storage nook with wireless charging, and big door pockets with bottle holsters.
In the back you have access to door pockets, a flip-down armrest with cupholders (that middle part of the seat can fold down completely to allow storage of longer items), and there's excellent room on offer. How many seats in the BMW 6 Series GT? Five - like, five full-size seats.
Because the roofline doesn't rake as sharply as a four-door 'coupe', headroom is excellent for adults (even of the 183cm variety, like myself), and legroom and toe room are equally very good. This is bigger in the back than a 5 Series, but maybe not as plush as a 7 Series… so I guess it makes sense numerically for its nomenclature.
Of course you get climate control in the front (and in the rear if you option it), and the materials are excellent. The media screen is tablet-style, proudly displaying 10.25 inches of high-def real estate that is both touch-capacitive and controllable by way of the central rotary controller with touchpad. And get this - you can even use gestures to control certain elements like volume, swiping and changing tracks… but you have to option that.
The fully digital instrument display is bordered by a set of incomplete dial rings, which is just odd. BMW, back yourself - your buyers can handle just having a digital screen in front of them, particularly when it's as good as this one.
This grandiose hatchback's boot is commodious - with the back seats in place it has a huge 610 litres of cargo capacity, which extends to 1800L with the 40/20/40 seats folded down using the quick release levers in the boot area.
There is no spare wheel (the BMW range is fitted with run-flat tyres) but it does have a secondary hidden storage area under the boot floor for hiding items or stowing wet gear, bathers/swimmers or muddy clothes.
For context, the X6 has 580L seats up, 1525L seats down.
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 6 Series6/10
The BMW 6 Series Gran Turismo range starts off with the model tested here, the 630i. It has a list price of $123,500 before on-road costs - and that's whether you buy the M Sport Line or the Luxury Line.
That's quite a lot of money. And while it has a lot of equipment to help justify the cost, the smarter dollars will probably find their way to a more affordable 5 Series.
Standard gear in this spec includes adaptive air suspension with multiple drive modes, a colour head-up display, semi-autonomous parking, adaptive cruise control with steering assistance, auto high-beam LED headlights with LED daytime running lights, DAB+ digital radio, a 16-speaker harman/kardon sound system, a 12.3-inch driver information screen and a 10.25-inch media display with sat nav, Bluetooth and 'BMW ConnectedDrive' online services.
Hey, you even get a panoramic sunroof as standard! Plus there are things like an active rear spoiler, two USB ports and four 12-volt outlets, leather trim, heated front electric seats, electric steering wheel adjustment, keyless entry, push-button start, and an automatic boot.
It also comes loaded with active safety assistance functions - we'll get to that in the safety section below.
Things it's missing at this price point? Well, heated seats are an option, but bundled nicely into the 'Comfort Package' ($3000) which was fitted to our car. The pack includes heated seats front and rear, quad-zone climate control, electric sunblinds for the rear side windows, and electric seat back adjustment. Oh, and BMW continues to gouge consumers $623 for Apple CarPlay (which seemingly didn't work in our car).
The only other 6 Series GT model available is the 640i xDrive, which is again available with the choice of M Sport or Luxury body styling. It's also pretty exxy, with a list price of $148,900, but gets a more performance-focused drivetrain, as well as extra equipment: essentially the Comfort package, plus vented front seats, interior fragrance (eight options), memory settings for the front seats, 20-inch wheels and metallic paint.
Plus the 640i has Sport+ settings - it's probably the wrong car for those - and 'Integral Active Steering' to couple with the all-wheel drive system.
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 6 Series8/10
Under the bonnet of the 630i is a 2.0-litre four-cylinder turbocharged petrol engine, which produces 190kW of power (at 6500rpm) and 400Nm of torque (from 1550-4400rpm). It uses an eight-speed automatic transmission, and is rear-wheel drive.
That may not seem a lot considering the size of this machine, but consider that some of the steamiest four-cylinder hot hatches have nearly the same outputs, and you realise this engine offers up a far-from slouched approach to propulsion.
The 640i xDrive has a 3.0-litre six-cylinder turbocharged engine with 250kW of power and 450Nm of torque. It gets the same eight-speed auto, but as the xDrive naming indicates, it's all-wheel drive.
But this is the one you'd prefer if you want to hit highway speed in a hurry - the 0-100km/h claim is 5.3 seconds, where the 630i takes a full second longer (6.3sec) according to the company.
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 6 Series7/10
BMW claims fuel use of 7.0 litres per 100 kilometres, and you'll need to use 95RON premium unleaded when you fill up.
On my trip with the car, I saw about 9.0L/100km across mostly high-speed driving - some freeway, some highway, some country back road touring, and quite a bit of corners and city stuff thrown in as well. I think that's pretty respectable.
What wasn't so great was the lack of premium fuel in some of the 'away from civilisation' places on my route home. Keep that in mind if planning your own GT long-distance cruise.
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 6 Series7/10
I'll put this out there - if you like to drive, there are BMW models for less than this one that will put a much bigger smile on your face. Like, a 440i Gran Coupe, or even just a 330i sedan…
But if you're in BMW's target market - that being older executive buyers who want space and luxury as a priority over thrills at the wheel, you could do a lot worse.
That's because the 6 Series GT lopes along the highway without fuss - the engine easily coping with the demands of overtaking moves, the adjustable drive modes allowing a light steering and wafting suspension feel to wile away the kilometres.
There are 'Comfort' and 'Comfort Plus' modes, but the latter is a bit too spongy and can be boaty feeling. The Comfort setting is made for the highway.
If you decide to deviate from the straight sections, you'll be able to explore a little bit of dynamic range, especially when you dial up the 'Sport' mode, which changes the damper settings, steering weight, throttle and transmission response, and even the digital dials in front of the driver to a more aggressive look.
Our car had the 'Integral Active Steering' setting, which is a variable ratio steering system that includes rear steering - that essentially helps make is more turnable in corners at highway speed, and easier to park at lower speeds. It's difficult to say whether the assistance is excellent or not short of driving a car without the tech, but to this tester it was hard to hide the size and weight (1835kg kerb weight) of the vehicle.
That isn't to say it's clumsy or lumbering - it is actually pretty agile for its dimensions, though it makes a lot more sense on long drives and coastal cruises than it does in the narrow and twisty alpine roads of the Snowy Mountains Highway that I tested it on.
There's good grip from the tyres, and strong response from the powertrain - but if it were my money, and I had to have a 6 Series for whatever reason, I'd be looking towards the 640i model, which has a thumping six-cylinder with 250kW/450Nm - certainly an engine that would be more at home in this car. Plus that model comes with AWD.
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 6 Series9/10
The BMW 6 Series GT range has a five-star Euro NCAP crash test score based on 2017 testing, but it hasn't been scored by ANCAP.
There's the usual array of airbags - dual front, front side, full-length curtain and driver's knee airbags are included, plus parking sensors all around, and heaps of safety tech including the 'Driving Assistant Plus' package with lane departure warning and lane keeping assist, forward collision warning, auto emergency braking (AEB) front and rear, blind-spot monitoring and rear cross-traffic alert, and adaptive cruise control with stop and go.
That's all great stuff, and so is the 360-degree camera system with adaptive display - so, if you're reversing and you turn the wheel to one side, the image on screen will move, too. It'll also go between a birds-eye view and a backing-up perspective, and that can take some getting used to.
What was less convincing in terms of the user experience was the rear auto braking, which seemed to be scared of the car's own shadow. On multiple occasions the car jammed on the brakes when reversing out of driveways on to empty streets - be it in the normal height, or the raised height setting.
The 6 Series GT has dual ISOFIX anchor points and three top-tether points are there and ready for baby seats or child seats.
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 6 Series8/10
BMW runs a condition-based servicing plan, which means the car will tell you when it needs servicing. But you can rest assured it won't (theoretically) cost you much, with the brand's 'Service Inclusive' pack. It covers you for basic maintenance as and when required for five years/80,000km. According to BMW, that includes "annual vehicle checks, oil changes, all filters, spark plugs and labour costs for the duration of the package".
BMW offers a three-year/unlimited kilometre warranty plan, and you get the same cover for roadside assistance.
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.