Mercedes-Benz CLS-Class VS BMW 3 Series
Mercedes-Benz CLS-Class
Likes
- Sleek styling
- Beautiful cabin
- Ride and handling
Dislikes
- Limited rear legroom
- Higher entry price into range
- No diesel variant
BMW 3 Series
Likes
- Driving performance
- Well-specified base model
- Sexy styling
Dislikes
- Harder ride might bother some people
- Cosy back seat for child seats
- Lacklustre lane keeping tech
Summary
Mercedes-Benz CLS-Class
There are people who probably wish the Mercedes-Benz CLS would just go away. Call security, have it escorted off the premises. That’s probably because they don’t agree with its styling. For them, it’s not how a large four-door Mercedes-Benz should look, with its ‘rude’ coupe roofline.
But for some of you those looks are exactly why you want it, and there’s enough of you out there for Mercedes-Benz to tell us at the launch of the new-generation CLS that the model is here to stay.
“You don’t surrender a segment… a vehicle has to do 100 units to justify bringing it – this will do 100 units no problem sat all,” were the exact words from Benz’s head of communications David McCarthy.
You could say Benz created the four-door coupe segment when it launched its first-generation CLS 14 years ago, triggering its rivals to fire back with their own four-door coupes - the Audi A7 and BMW 6 Series Gran Coupe.
Far from surrendering, the CLS has evolved again with this third-generation bringing new engines and styling. So, what do you gain and what will you have to surrender (for lack of a better word) if you choose to go down the non-traditional route of the CLS?
I found out when I drove the new CLS 450 4Matic for the first time on Australian roads at its recent launch.
| Safety rating | |
|---|---|
| Engine Type | 2.0L turbo |
| Fuel Type | Premium Unleaded Petrol |
| Fuel Efficiency | 7.8L/100km |
| Seating | 5 seats |
BMW 3 Series
Back in the day, the 3 Series sedan was often the entry to the brand for first time BMW owners, and for good reason. They offered practical interior space without compromising on engine performance.
And they simply looked good, no boring nanny design elements. Then the 1 Series came along and price points bumped up, so how does the ‘entry’ BMW 320i M Sport live up to its long-standing reputation?
With an updated dashboard that brings the interior and tech up to market and a sharper exterior design, it more than holds its own at the table of luxury sedans, despite hard competition from the likes of the Audi A4, Mercedes-Benz C200 and Jaguar XE.
Read more about the BMW 3 Series
However, if the Merc is a placid and well-behaved mare… the BMW is the barely-broken-in bronco and it takes a certain kind of ‘rider’ to enjoy what the 320i has to offer.
I’ve been discovering just that this week with my family of three. What did we find out? Read below!
| Safety rating | |
|---|---|
| Engine Type | 2.0L turbo |
| Fuel Type | Premium Unleaded Petrol |
| Fuel Efficiency | 6.5L/100km |
| Seating | 5 seats |
Verdict
Mercedes-Benz CLS-Class8/10
The Mercedes-Benz CLS has proven to be a niche hero, creating a segment and then evolving into something even more elegant, while keeping its unique appeal. A beautiful, modern cabin and the new engine in the CLS 450 provides the swiftness to match those looks.
Do you wish the Mercedes-Benz CLS would just go away or do you think it's just perfect? Tell us what you think in the comments below.
Also, check out Matt Campbell's video review from the CLS's international launch:
BMW 3 Series8/10
I thoroughly enjoyed my time in the BMW 320i M Sport. It’s fun to drive and I felt connected to what the car was doing on the road. The harder ride may not appeal to some but I didn’t mind it. The cosy back seat and boot mean it will probably suit a smaller family best and one which doesn’t have to worry about carrying a lot of gear around regularly, but it suited my needs just fine.
I reckon this is a car for those drivers who don’t want to compromise on performance but still have a kid or two. If you’re after the cushioned comfort of a Merc, this won’t appeal but I didn't want to give this one back and happily give it a firm 8/10.
My son liked the sports car looks and enjoyed the amenities in his row. He gives it a 10/10.
Design
Mercedes-Benz CLS-Class9/10
The new-generation CLS has arrived looking slipperier than a cake of soap on the bottom of the bath. This model has always had svelte styling, but things have become even smoother with Benz’s design chief Gorden Wagener insisting more lines be removed in the creation of this latest version.
So, while there’s the familiar profile of that roof tapering down into the boot lid, the long rear overhang and that sliver of a window opening arching and turning down sharply at the rear, it's a more flowing design now that there are less edges to break it all up.
A new ‘shark nose’ grille opening, and broad bonnet adds a hunk of muscle car toughness to the CLS’s face. But it’s refined thuggery, with that single-louvered ‘diamond studded’ grille flanked by flush-mounted headlights. The tail-lights, too, are so contoured to the body around them they look painted on.
As CarsGuide senior editor Matt Campbell pointed out in his review of the CLS at the international launch, the car looks far better in the metal than it does in any photo.
The CLS is based on the E-Class, sharing its platform and technology, but it’s about 20mm longer (at 4988mm) end-to-end. That’s almost 50mm longer than the previous generation CLS, too. At just over 1.4m tall the CLS is low-slung but wide at 1.9m across (almost 2.1m including mirrors).
The CLS’s cabin mirrors that of the E-Class, too, with a sweeping dashboard which flows through into the doors, two large landscape displays for your instruments and media, an oversupply of air vents and some darn sexy lighting. It’s a luxurious, stylish, comfortable, but snug setting cocooned by padded leather and polished surfaces.
The Australian CLS has been fitted standard with the AMG interior and exterior packages.
You can pick from 11 colours – eight of which are no-cost options and include, 'Polar White', 'Obsidian Black', 'Iridium Silver', 'Citrine Brown', 'Graphite Grey' and 'Cavansite Blue'. Optional colours include 'Hyacinth Red' and 'Selenite Grey Magno'.
BMW 3 Series
Sharper than its predecessor, the new 320i has LED everything with the rear lights being longer and curving around to the sides of the car.
The classic 'kidney' grille is darkened and more pronounced, with the black panelling extending to the rear to create an unapologetically sporty presence. A presence that’s accentuated by the twin exhausts.
The batcave interior with its black headliner, black seats… black everything, looks smart and stylish.
You do have a fair bit of harder touchpoints throughout but the customisable ambient lighting helps to soften the overall effect.
With its 2068mm width, 4709mm length and 1435mm height, the sedan makes its presence known without feeling cumbersome to manoeuvre. Urban dwellers need not fear their local car park!
Practicality
Mercedes-Benz CLS-Class7/10
Remember how I said you were going to have to surrender something if you wanted a CLS? Well, yes, you’ve have to surrender your hard-earned money, but you’ll also have to give up quite a bit of practicality.
That swooping roofline makes entry into the front seats a bit precarious for people of my height (191cm) trying to swing themselves into the cockpit without clocking their heads on the A-pillar.
The impracticality only gets worse with entry into the back seats, and legroom in there for me is tight, too.
I can only just sit behind my driving position thanks to the contoured seat backs. Headroom is also limited.
It’s worth pointing out that this time the CLS is a five-seater – the previous generation sat just four.
Storage isn’t bad, running to a deep centre console bin with a split lid, there are two cupholders up front and another two in the rear fold-down armrest along with another covered drawer, and all doors have small bottle holders.
The CLS’s boot capacity is 520 litres, and the rear seats fold 40/20/40 to provide extra space.
BMW 3 Series
For such a sleek looking sedan, it’s generous up front with plenty of head and legroom.
You can adjust the seat to sit quite low and both front seats have extendable under-thigh supports, which should excite taller drivers.
My 189cm (6’2”) brother has the 328i and is very comfortable but taller front passengers will encroach on back seat passenger comfort.
The front seats are quite firm on the backside, they also lack adjustable lumbar support, so expect to stretch the kinks out on a longer trip.
The amenities and tech feel well thought out and easy enough to use. The 12.3-inch touchscreen multimedia system looks great and has the best-looking graphics I’ve sampled.
The BMW system is intuitive to use once you get used to it. If you’re not interested in using the touchscreen, you can also utilise the rotary-wheel for menu selections.
There’s also Bluetooth connectivity, wireless Apple CarPlay and Android Auto plus built-in satellite navigation.
The 12.3-inch digital instrument panel is customisable and the information displayed simply but you won’t really look at it because of the head-up display.
Front occupants enjoy a wireless charging pad for their smart phone, a USB-A and USB-C port plus a 12-volt socket. Rear passengers get a couple of USB-C ports, too.
The storage is good for this size sedan but overall passenger room takes priority, but the glove box and middle console will suffice for everyday use.
While it may not excite others, I love the big bottle holders in the doors. They’re large enough for my big 1.5L bottle and angled for easy access. These are found in the rear doors as well.
Back seat passengers enjoy climate control, directional air vents, two cupholders, netted map pockets and reading lights.
My six-year old was happy with the amenities and lower ground clearance because he felt comfortable and had his independence.
The boot offers a good capacity of 480L and the aperture isn’t too narrow, so you can comfortably access items if they roll to the back.
I had plenty of room for my little family’s needs but if you’re a larger family, you may need to get strategic with gear storage.
Being a base model, you do miss out on a powered tailgate, which is a shame but not too much of an issue given this is a sedan and the lid isn’t heavy.
There’s also no spare tyre or even a puncture repair kit but you have run-flats, so you should be able to limp to a service centre if need be.
Price and features
Mercedes-Benz CLS-Class8/10
Benz has dropped the 250d grade, which means you can no longer have your CLS with a diesel engine. That also means the new entry fee is higher with the CLS 350 kicking the line-up off at $136,900 (list price).
You’ll be rewarded with a decent amount of equipment for the outlay, though. Coming standard on the CLS 350 are those two 12.3-inch screens, a head-up display, a 13-speaker Burmester stereo, sat nav, Apple CarPlay and Android Auto, digital radio, surround view camera, leather upholstery, heated front seats, 'Brown Ash' wood trim on the centre console, wheel-mounted shifting paddles, AMG exterior and interior packages, auto-parking, 20-inch AMG wheels, air suspension, proximity key and privacy glass.
The CLS 450 4Matic lists for $155,529 and adds air filtering in the cabin, power closing doors, a sports exhaust system and all-wheel drive.
At the top of the three-grade range is the Mercedes-AMG CLS 53 4Matic+ for $179,529. The extra money buys you nappa leather upholstery, wireless charging, the ‘Night’ body kit, an AMG exhaust system, and of course, a lot more grunt which you can read about below.
BMW 3 Series
There are seven variants for the BMW 3 Series sedan and our model is the base model for the petrol variants.
There is a plug-in hybrid version, the 330e, if you’re after a more fuel-efficient option but it will up the price by about $20K.
As it stands the 320i M Sport is $78,900, before on-road costs. Our model has been finished in 'M Brooklyn Grey', which adds $1539 to the price.
That puts it at a similar price point as its rivals. You get a well-specified package with the M Sport but it doesn’t have the same sense of cushioned comfort as the Merc does, but more on that later.
Still, the sporty and streamlined interior is headlined by BMW’s dual 12.3-inch screens that sit propped on the dash like a futuristic cockpit.
The mix of synthetic leather and cloth seats are electric and have adjustable side bolsters for when you want to go hard in a turn.
The interior also boasts a sunroof and wireless Apple CarPlay and wired Android Auto. There are some other highlights like the 18-inch alloy wheels, leather steering wheel and the crystal-clear head-up display, to name a few.
Under the bonnet
Mercedes-Benz CLS-Class8/10
If you’ve skipped straight to this bit you’ll have missed news that there’s no longer a diesel engine in the CLS line-up. Instead you have a choice of three petrol engines – one for each grade and all of them are new to the model.
The CLS 350 has a 2.0-litre four-cylinder turbo-petrol engine producing 220kW/400Nm. That grunt is delivered to the rear wheels via a nine-speed automatic.
The CLS 450 4Matic has a 270kW/500Nm 3.0-litre in-line six-cylinder engine with a twin-scroll turbo and like the Mercedes-AMG 53 above it has an integrated electric motor called an EQ Boost. While it’s a hybrid system of sorts the electric motor doesn’t drive the wheels, instead it recuperates kinetic energy and charges the battery.
The CLS 450 uses the nine-speed auto, as well, and is all-wheel drive.
The Mercedes-AMG CLS 53 4Matic has the same transmission and engine as the CLS450 but has been given a heftier twin-scroll turbo charging system and tuned to produce even more grunt at 320kW/520Nm. The 'EQ Boost' performs the same function as in the CLS 450, but also provides power to an electric turbocharger. The Mercedes-AMG CLS 53 4Matic is also all-wheel drive and uses a nine-speed automatic.
BMW 3 Series
The 320i M Sport has the ‘baby’ engine in the 3 Series line-up but the 2.0-litre, four-cylinder turbo-petrol powertrain still delivers on power with a maximum output of 135kW/300Nm.
This is a rear-wheel drive and has an eight-speed auto-transmission which delivers very smooth gear changes.
Despite having the smaller engine, it can still go from 0-100km/h in just 7.4 seconds.
Efficiency
Mercedes-Benz CLS-Class8/10
This is a good place to remind you (again) that only one CLS grade was available to drive at the Australian launch – the CLS 450, and we were only given the claimed fuel economy figures for that model.
After 197km through, on a route that bumper to bumpered its way out of Melbourne CBD and headed the long way to the airport via Woodend. our car’s trip computer was reporting close to an average of 10.0L/100km.
BMW 3 Series
In a world with rising fuel prices, the efficiency of this decently powered sedan should excite you.
The official combined fuel cycle is 6.5L/100km. Real world testing saw my figure at 7.4L/100km after a mix of open-road and urban driving this week.
I thought that was great for how hard I drove it and for the power, you won’t be wincing when you put your foot down. I would expect it to be higher in an urban setting.
The 320i has a 59L fuel tank and based on the official combined cycle figure, you should get just over 900km of driving range, which is great, especially if you do 'roadies' like me!
Driving
Mercedes-Benz CLS-Class8/10
A reminder again, folks – Mercedes-Benz only had the CLS 450 available to drive. Okay? On with the review…
Nobody likes a traffic jam, apart from maybe taxi drivers. But sitting in a CLS deep in Melbourne’s CBD, stuck in road-work-infested roads, choked with cars going nowhere was as pleasant as the experience could be.
Plush seats, pretty lighting, air filtered and fragranced, air suspension cushioning the patchy tarmac underneath as we wriggled our way north towards Mount Macedon and country roads.
If you read another review calling out a large degree of wind noise filtering into the cabin, they’re right and wrong. See, the weather was apocalyptic as we hit the motorway. Trees doubled over kind of windy, and sure you could hear it rushing past the windows when we were at 110km/h, but you could also hear it clearly when we were at 30km/h.
I like gadgets and so it was about 15 seconds into the motorway stint that I tested out the active cruise control, and automatic lane changing, which works near perfectly.
As the roads became more winding, I switched drive modes to 'Sport', firming up the suspension and steering, at the same time prompting the transmission to kick back into a lower gear.
This is a stable-feeling car, well balanced and effortless to steer. Smoothness is a word for everything it does, including covering the ground quickly.
While that acceleration is rapid, it’s not quite exhilarating, and the engine note under load is a little high pitched for a thug like this.
CLSs of the past were known for being a bit more aggressive and feistier, but this one seems to have mellowed in its third generation. I don’t see any issues with this. There are other angrier Benzs if that’s your thing.
BMW 3 Series
There's a lot that I like about how this performs but a highlight is how eagerly the car responds when you accelerate.
However, it’s not unbridled power. There’s no bucking at the front or shuddering through the steering wheel. It’s controlled but still very fun.
The lower centre of gravity and coupe-like height of this does mean it handles corners well and the bolstered seats hold you firmly into place, meaning you can be free to drive this a little harder than you might normally. Which I did and can confirm it handles itself well.
This has the M Sport suspension, which means it’s stiff, but you feel very connected to the road.
You do get a lot of talk-back from bumps in the road but unless you hit a big pothole, you never feel rattled by them.
But it is a harder ride than other luxury models, which doesn’t bother me as I like the handling, but if you want limo-like comfort, look elsewhere.
The cabin is very nice to spend a lot of time in and relatively quiet, even at higher speeds.
The 11.4m turning circle and sleek dimensions makes it very handy to park, even in tight car parks. The nose is long but the front and rear parking sensors take out any ‘will I make it’ moments and the super clear reversing camera is great.
Safety
Mercedes-Benz CLS-Class9/10
The second generation CLS was never crash tested and this new one has yet to be as well. So, while it hasn’t been given an ANCAP star rating, given it shares so much with the five-star rated E-Class we’d expect it to score nothing less than that, too.
Along with nine airbags, ABS, and traction and stability control the level of advanced safety equipment onboard the new CLS is seriously impressive. There’s the 'Driving Assistance package Plus' which brings AEB with cross traffic function, evasive steering, blind spot warning with an active function and lane keeping assistance.
For child seats you’ll find two ISOFIX mounts and three top ether anchor points.
BMW 3 Series
The safety list includes a suite of features and the following come as standard: adaptive cruise control, auto emergency braking (operational from 5.0-210km/h), blind-spot monitoring, speed sign recognition, forward collision warning, SOS emergency call button, daytime running lights and rear cross-traffic alert.
I like the intelligent seatbelt reminder and that the bonnet is considered 'active', meaning it will lift up and away from the engine if the sensors detect that a pedestrian has been hit.
However, I have to call out the lane departure and keeping aids. It’s a hit or miss system and I tested it extensively this week once I noticed it.
You can customise the sensitivity levels and even on the highest sensitivity, it works too sporadically for my liking. BMW should improve this system for future instalments.
The 3 Series has been awarded a maximum five-star ANCAP safety rating but it was done a while ago in 2019. It only has seven airbags and is missing the newer front centre airbag.
There are ISOFIX child seat mounts on the outboard seats and three top tether anchor points but the back seat is a bit too narrow to comfortably fit three child seats side by side.
You'll be able to fit a 0-4 rearward facing child seat but may struggle if you're a tall family.
Ownership
Mercedes-Benz CLS-Class7/10
The CLS is covered by Mercedes-Benz’s three-year/unlimited kilometre warranty. Servicing is recommended every 12months/25,000km for the CLS 350 and CLS 450, while the CLS 53, like all AMGs needs to visit at 12month/20,000km intervals.
Mercedes-Benz says a capped price servicing plan will be available, but has yet to release the prices. We’ll update this as soon as the costs have been announced.
BMW 3 Series
The 320i comes with a five-year/unlimited km warranty, which is standard for this class.
You can choose between a three- or five-year capped-priced servicing plan. The five-year plan costs just $2150, or $430 a year, which is competitive for this class.
Like other BMWs, servicing intervals are condition-based, with the car letting you know when it needs to be serviced.