Mazda CX-70 vs Mercedes-Benz Marco Polo Activity

What's the difference?

For mine, the CX-70 is the pick of Mazda's premium SUV range, and if you can survive without a third row of seats, it's significantly cheaper than its CX-90 twin, too.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

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.

Yes, the Mazda premium SUV range can look a little same-same, but Mazda insists there are critical differences.

That said, if you can immediately spot the difference between the CX-70 and CX-90 without taking a peek inside, you're doing better than me, given it is the same exact dimensions as Mazda's three-row flagship.

Sure, Mazda talks about things like this design being a “passion pursuer” that serves up "dignified performance” – all of which sounds utterly ridiculous – but the less marketing-speak version is that it looks like a shapely large SUV that ditches the boxy dimensions of a proper 4WD for a more sleek and swooping profile.

Inside, it's a plush and premium-feeling space, with lovely cabin materials, plenty of tech, and plenty of space.

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 CX-70 measures a substantial 5120mm long, 1994mm wide, and 1745mm tall, and it rides on a 3120mm wheelbase.

It will tow 2.5 tonnes no matter which engine you choose, and the expansive boot will swallow between 589 litres and 2015 litres, depending on how you configure the backseat.

All of that space translates to a hugely airy backseat experience, with the second row able to be fixed in a position that either prioritises leg room or boot space.

With the former, you've got tons of space in the second row. I'm 175cm, and my knee and leg room was ample, with only the intrusive tunnel that runs down the middle-centre of the cabin eating into leg room for the middle passenger.

There are also air vents and temp controls, twin USB charge ports, seat heating in the window seats and swathes of very nice materials.

The boot is massive, too. I can't even reach the back of the rear seats when I lean into it, and Mazda says it will swallow smaller surfboard or SUPs without needing to resort to roof racks.

Under-floor storage adds a bit more security for precious items, 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.

You can have one of two engines in the CX-70, with the cheapest being a 3.3-litre, six-cylinder turbo-petrol, producing 254kW and 500Nm. There's also a 3.3-litre, six-cylinder turbo-diesel, making 187kW and 550Nm. Both are equipped with a 48-volt mild hybrid system to marginally reduce fuel use.

All models are AWD, and pair with an eight-speed automatic transmission.

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.

Petrol-powered cars will sip 8.1L/100km on the combined cycle, while the diesel drops that to 5.4 litres.

Both models get a 74-litre tank, meaning a theoretical driving range of around 900kms in the petrol, and almost 1400kms in the diesel.

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.

Interestingly, the CX-70 has been tagged as the expected smallest seller of Mazda's premium SUV range, but I reckon it just might be the pick of the bunch.

Every one of the CX-0 models (60, 70, 80 and 90) all get slightly different suspension tunes, and while you can find harsh edges in the other models, the CX-70 feels utterly composed and refined, at least on the smooth-ish roads of our launch test route.

Perhaps most surprising, though, is the CX-70's ability to hold its own on a properly twisting road. We expected lots of weight transfer and the high-pitched sounds of tyres screaming out in pain, but instead found Mazda's massive SUV served up grip, composure, and very little in the way of sea-swell-style body roll.

The two big six-cylinder engines also feel perfectly suited to a vehicle in this space. There's tons of power whenever you need it, and solid levels of refinement in terms of engine noise or diesel rattles.

For mine, the petrol engine is the pick though, feeing just a little smoother than the diesel option. The latter can feel a bit jerky at slower speeds, whether that's the power delivery or the gearbox, and it doesn't seem to happen with the petrol engine.

The biggest caveat, though, is that we haven't driven the CX-70 in its natural environment, the city and suburbs, so while it largely shone on flowing country roads, how it performs on roads like the ones near your place remains a bit of a mystery.

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).

Servicing is not particularly cheap in the CX-70, and the service intervals, at least in the diesel, feel a little short, too.

Buy that one, and you’ll be visiting the dealership every 12 months or 10,000kms, and the first five years of ownership will cost you $3298.

Petrol cars require servicing every 12 months or 15,000kms, and five years will set you back $3436.

The CX-70 is also covered by Mazda's five-year, unlimited-kilometre warranty.

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.