Kia Carnival vs Mercedes-Benz Marco Polo Activity

What's the difference?

Ok, here's the rub. Everything you just read could well be pointless. You like the Carnival. In fact, it sometimes makes up close to 90 per cent of the sales in its segment, and outsells all of its competitors combined.

So whether I like it or not, I suspect you'll be buying one anyway.

But I can say this - the new Carnival improves the formula right across the board. Well, everything except for price.

The Activity is a smooth-riding, comfortable tourer with a real touch of class, but it’s let down by the old-school entertainment system, its sometimes clunky and counter-intuitive design and engineering, and the lack of a kitchenette.

Having said that, this compact campervan is a more than adequate and classy introduction to the world of touring for those who want to dabble in the adventure-travel culture but not necessarily immerse themselves in it just yet.

Surely the greatest trick the Carnival pulls off, and it does so convincingly, is that it manages to make something so quintessentially uncool, the people-mover, and make it look good. Somehow sporty, even.

I like the Carnival's big, bold and blacked-out front end of the GT-Line, and with its two-tone 19-inch alloys, wide stance and low ride height, it looks almost like some mad attempt at a JDM tune car, rather than a sensible people mover.

Elsewhere, the boxy profile, the sharp body creases and the third-row compartment that kind of juts over the rear tyres like a house that's been extended all somehow work, and give the Carnival far more street cred than you might expect.

Inside, we spent time only in the flagship GT-Line and its GT-Line Lite sibling, and both present as calming, comfortable spaces, and Kia's minimalist approach to combining the climate and audio controls into a single strip (it's functionality can be changed by pushing a button) helps keep the cabin fuss free.

The tech in the top-spec models feels modern and on-point, too, and the materials are all nice under the touch. Be warned though, the cabin plastics get progressively worse the further back you sit, and the third row is cocooned by hard and scratchy plastics.

The Activity manages to avoid appearing too straight-up-and-down and boxy and for something based on its Vito stablemate, a van, that’s a mighty achievement. For an RV the Activity has plenty of presence without any undue bulkiness.

The pop-up roof with roof bed folds down to the roof-line quite neatly on its rear hinge for when the Activity is in motion, so it’s not an eyesore at all.

Of note is the fact the front seats swivel around to face the rear – obviously you only do that when the vehicle is stationary – and the three-seater bench at the very rear of the cabin lays flat, along with the second row, to make a double bed.

Overall, the Activity is a pleasant-looking vehicle, inside and out.

The Carnival measures 5115mm in length, 1995mm in width and 1775mm in height, and it rides on a sizeable 3092mm wheelbase. 

And those mini-van dimensions have a predictably positive impact on luggage space, with room growing from 627 litres with all seating rows in place, to a massive 2827 litres with the third row stowed.

The key practicality perk here, though, is space, and lots of it. At 175cm, there was ample room for me in the middle row, and you can configure the cabin to your liking, too. You can slide the row on rails, for example, to prioritise leg room where you need it, and the middle seat folds down to reveal cupholders in a kind of hard plastic travel tray.

But even in the third row I could easily get comfortable, though head room begins to get a little tighter. There are cupholders and USB connection points, too, and I can honestly say you could send full-size humans back there and not feel overly guilty about it.

The Carnival will tow 2000kgs braked, too.

For starters, opening and closing the side doors is a breeze; the two sliding doors are both electric so once you have lifted the handle, the doors do the rest of the work for you.

There’s plenty of room inside – for front and rear passengers. The interior is all durable plastic, hard-wearing cloth and leather-trim (on the armrests etc) – well suited to a life of day-to-day family duties and touring fun.

Driver and front-seat passengers get adjustable armrests and some storage space – glove box, door pockets with a space each for a bottle – but, annoyingly, there is no centre console at all – but its absence is so the front seats can swivel around, as mentioned.

There are four bottle holders – two brackets, two indents – for rear passengers. Looking for more storage space? Check under the second-row seats for handy tucked-away recesses.

The media/entertainment system is not a touchscreen unit and is a real let-down; the 5.8-inch screen is small and the controls are via knobs and counter-intuitive.

Our Activity was $71,709 (as tested, with $8082 worth of optional extras on top of the base vehicle price, $63,627). 

The optional equipment included: 'Cavansite Blue' metallic paint ($1355), the aforementioned 'Driving Assistance Package' ($1345), fog lights ($309), 17-inch alloy wheels ($627), electrical sliding doors (left and right, $2264), seven seats ($1500), and a side-mounted silver awning ($682).

As standard it has two large double beds – the pop-up roof bed and the seats-folded-flat one – and you get the usual array of gear you’d expect in something like this – audio system (but no Apple CarPlay or Android Auto), daytime running lights, air con, etc – but you don’t get other stuff, such as a kitchenette, fridge or stove, that you might assume to be in something touted to be campervan-like. 

You do, however, have access to two batteries so you’re able to run your own fridge off of one battery, without laying awake at night in your roof-top bed worried about the main battery running out of juice.

There are two ICE options on the table here. The first is what I reckon is the lesser of the two, a 3.5-litre petrol V6, producing a rev-happy 216kW and 355Nm.

The better option, I think, is the 2.2-litre, four-cylinder diesel, which makes 148kW and 440Nm, and just suits the nature of the car a little better.

Both pair with an eight-speed automatic, and send their power to the front tyres.

This Activity has a 2.2-litre, four-cylinder turbo-diesel engine (120kW at 3800rpm and 380Nm between 1400-2400rpm) with a seven-speed automatic transmission.

The petrol engine will sip a claimed 9.6 litres per hundred kilometres on the combined cycle, and produce 220g per kilometre of C02. The diesel lowers both those numbers, to 6.5 litres and 170 grams.

Both models are fitted with a 72-litre fuel tank, which means you’ll be sailing well north of $100 to fill one up.

Because the Activity is a rear-wheel drive van, we didn’t venture onto anything more serious than well-maintained gravel roads, and even then we took it very gently. 

Fuel consumption is a claimed 6.3L/100km – we recorded 9.3L/100km over 150km of mostly bitumen with a smattering of easy gravel track. It has a 70-litre fuel tank.

Forgive the horrific paraphrasing, but it seems rumours of the death of diesel have been greatly exaggerated, at least when it comes to the Kia Carnival.

Get this – diesel sales make up some 90 per cent of the Carnival's total haul, with petrol providing a pittance towards the sales total, presumably being picked up by fleet buyers.

And to be honest, that means nine out of 10 people are making the right choice here. Yes, the petrol makes more power, but it's the torque on offer from the diesel that makes pushing the Carnival around feel far more effortless.

The petrol engine can definitely get you moving, but it feels a bit too rev-happy and thrashy when you really put your foot down, and its significantly thirstier to boot.

The diesel isn't perfect – the thrum of the engine is a constant companion whenever you put your foot down, and there's actually too much torque on offer at times, like if you're accelerating up hill from a standstill on a damp road, and so the front tyres can scrabble and scramble for grip.

But it otherwise so perfectly suits the nature of the Carnival that it is definitely the best and most satisfying choice.

Another big change for this update is the fact that Kia's complete ride and handling program has been rolled out here. Kia says local work done on the outgoing car, the one this replaces, was curtailed by Covid and bushfires, and so ended up being done by correspondence.

This one, though, has had the whole enchilada thrown at it, and it shows. They've succeeded in making a bigger car feel smaller around you. It's not a sports car by any measure, but nor does it ever feel too big and unwieldily.

Part of that is down to the steering, which is direct and confidence inspiring, but mostly I suspect it's because of the ride, which is firmer than you might expect in a family hauler, but also offers a connection to that road below that makes you feel in control.

Whether a firm-ish ride is a perk or negative is up to you, but it definitely works for me.

Pretty damn good. For a big unit – 5140mm long (3200mm wheelbase), 1928mm wide, 1980mm high with a kerb weight of 2380kg – the rear-wheel drive Activity doesn't feel unwieldy on city or urban streets.

Its turning circle is 11.8m, which is better than plenty of large SUVs – and it can fairly punt along the open road, egged along by that 2.2-litre turbo-diesel.

The Activity’s seven-speed auto has a three-on-the-tree (Reverse-Neutral-Drive) and Park shifter stalk on the right-hand side of the tilt-and-reach-adjustable steering column. 

I haven’t spent a lot of time in Mercs of any sort, but once you’ve become used to the positioning of the shifter – and the fact your indicator and windscreen wiper stalks are one and the same, and to the left of the steering column – then it’s simple enough to work out how to get this Merc moving. Once you’ve used your hand to release the foot-engaged parking brake with the park-brake release handle below and to the right of the steering wheel, that is. (Exhale.)

On road, the Activity is a smooth sailor. Steering is light and responsive; the driver’s seating position is high and offers plenty of visibility out any window – as long as you don’t have the privacy curtains pulled shut. 

The driver and front passenger seats could, however, do with more under-thigh support. Our test example had five seats for travelling, with a bench seat for two or three people at the rear for when you are stationary; all seats are cloth.

Niggle: Lane-wander warning, part of the optional equipment list on our tester, is a bit touchy – it doesn’t allow for taking the race line through a corner – and sends a juddering sensation through the steering wheel to alert you.

The Activity has a maximum five-star ANCAP rating, based on crash tests of the Mercedes-Benz V-Class in 2014. There are airbags up front, but none for rear passengers, and the Activity has a reversing camera and parking sensors, front and rear, and forward collision alert as standard gear. 

Our tester also had the $1345 Driving Assistance Package ('Collision Prevention Assist', 'Blind Spot Assist', 'Lane Keeping Assist', rain-sensing wipers).

Like all Kias, the Carnival arrives with a seven-year, unlimited-kilometre warranty, with capped-price servicing throughout.

Kia’s servicing costs are higher than some of its competitors, though, so you might want to compare them, as well as compare what’s included, and the diesel model will usually cost slightly more to maintain than the petrol version.

Service intervals are every 12 months or 15,000kms, and while the brand is still finalising the petrol servicing costs, the diesel prices are $386, $682, $480, $869, $434, $845 and $461, covering the first seven years of ownership.

It has a three-year/200,000km warranty and a 24-hour roadside assist support package. Service intervals are scheduled for every 12 months or 25,000km.