Mercedes-Benz Marco Polo Activity vs Audi S3

What's the difference?

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.

The updated Audi S3 Sportback is a fun-sized dynamo with impressive outputs and athletic road manners. It’s missing a few premium features, but its compact size paired with a gutsy engine makes it a compelling option for drivers who don’t want to compromise on performance (just 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 S3 Sportback may be a small car, but its S design features, like the stylised blackout grille, matrix LED headlights, and 19-inch alloys with red brake calipers, give it a distinctly athletic and fun-loving vibe. It’s compact, but definitely not diminutive and carries serious road presence. It’s hot hatch meets fun-size.

Inside, the S3 looks fabulous. Integrated ambient lighting, a sharp dashboard treatment and a driver-focused cockpit all lend it a premium feel.

The front seats look properly sporty with their integrated headrests, and the quilted Nappa leather upholstery feels great, especially with the eye-catching red contrast stitching.

As for technology, it’s as high-end as you’d expect with a 10.1-inch touchscreen multimedia display and 12.3-inch digital instrument cluster taking centre stage.

The only drawback? No sunroof. Combined with the black headliner and compact cabin, it can feel a little gloomy at times. Still, it’s a cabin you’ll enjoy spending time in.

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.

Like most hatches, the front row enjoys the most space. While it’s cosy, it never feels cramped. The seats are firm yet comfortable, thanks to their adjustability and expandable under-thigh supports. Access is fairly easy with wide door apertures, though the low seating position might earn a few grunts, especially from taller folks.

Storage up front is well sorted, with a glove box, a small centre console, a dedicated phone cradle and a couple of cup and bottle holders. It’s about what you'd expect for a car this size, but it's enough to keep things tidy.

There are plenty of charging options, with two USB-C ports in each row and a wireless charging pad up front.

The multimedia system is intuitive and easy to use. The touchscreen is responsive, and wireless Apple CarPlay connected without fuss and stayed connected all week. Wireless Android Auto is available, too.

Built-in sat nav is clear, and I love the way directions pull through to the digital instrument panel. The Sonos sound system? Pretty darn good. My son and I had more than one mini-concert on the school run.

As for the rear row, it definitely reminds you this is a small car. At 168cm, I found it on the cramped side of cosy and my husband just laughed when I asked him to try it! The wheel arch also cuts into the door aperture, making access a little awkward. Best to think of it as occasional adult seating. But given the size, that’s no surprise.

Amenities in the back are decent with a couple of map pockets, cup and bottle holders, as well as a fold-down armrest, those USB ports and rear temperature control (but curiously, no fan control). The seats are comfortable enough, but space is limited. Realistically, it’s best suited for two passengers, not three.

Boot space is quite practical. The wide opening and manageable load lip height make it easy to slide items in and out. It offers 325L of space, less than its key rivals, but expands to 1145L with the rear seats folded flat. The handy 40/20/40 split also adds versatility. Under the boot floor, you’ll find a tyre repair kit.

The A3 Sportback comes in three trim levels, with the S3 technically sitting in the middle, just below the performance-focused RS 3. It's priced from $78,800, before on-road costs, and it shares the same platform and underpinnings as the Volkswagen Golf R. Surprisingly, our test vehicle isn’t significantly more expensive than its Golf R rival which comes in at $70,990 MSRP.

That makes it a more affordable option when compared to premium rivals like the BMW M135 xDrive which starts at $83,600 MSRP and the Mercedes-AMG A35 which comes in at $89,700 MSRP.

The update sees engine outputs improve with it gaining 17kW and 20Nm of torque, resulting in a total of 245kW and 420Nm.

Feature highlights include 19-inch alloy wheels, red brake calipers, electrically-adjustable and heated front seats (with expandable under-thigh support), rear privacy glass, quilted Nappa leather upholstery and 'S Sport' suspension with damper control which lowers the ride height lowered by 15mm.

The updated technology is well-rounded and now comes with wireless Apple CarPlay and Android Auto. There's also three-zone climate control, a 10.1-inch touchscreen multimedia display, a 12.3-inch digital instrument cluster, digital radio, four USB-C ports, a wireless charging pad, built-in satellite navigation and a 15-speaker Sonos 3D sound system.

Still, despite its premium hot hatch status, this grade skips a few luxury touches. Ventilated front seats, a heated steering wheel, heated rear outboard seats and a sunroof are all missing. The BMW M135 xDrive, notably, includes all of these as standard.

Even the powered tailgate with kick-functionality is an optional extra here, adding $660 to the price. At this level that should be standard.

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 S3 Sportback wears the quattro badge proudly, meaning it’s all-wheel drive and it pairs a tweaked seven-speed automatic transmission with a 2.0-litre turbocharged, four-cylinder petrol engine.

This update brings a bump in performance over the previous model, including the addition of a rear torque splitter. Power is now up to a gutsy 245kW and 420Nm of torque, launching the S3 from 0 - 100km/h in just 4.7 seconds. That’s proper hot hatch territory.

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.

The S3 Sportback has an official combined fuel consumption figure of 7.9L/100km and a 55-litre fuel tank, giving it a theoretical driving range of up to 696km.

Its key rivals hover around similar numbers, so it's right on the mark for the segment. After a mix of long-distance drives and my usual urban errands, my real-world figure came in at 8.0L/100km - very close to the claim, which I’m pretty happy with.

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 S3 Sportback sounds as mean as it looks, and it delivers on that promise with effortless grunt. Acceleration is immediate, with plenty of power on tap when you need it. It’s just fun all around.

The lowered sports suspension and wide tyres do bring some extra noise into the cabin, even at lower speeds. You might find yourself repeating things to rear passengers now and then, but it never feels overwhelming.

Steering and suspension are on the firmer side, so yes, you’ll feel the bumps but the payoff is sharp, responsive handling. Quick lane changes and winding coastal roads are where this car shines.

Visibility is about what you’d expect from a low-slung hot hatch. The pillars don’t obstruct the view, but sitting beside a towering SUV at the lights can make you feel a bit... compact.

Cornering is a strong suit, thanks to the car’s wide stance and AWD system. It feels confidently planted in most conditions. That said, I noticed the occasional wobble through the rear frame on rough sections in heavy rain.

Its compact size makes parking a breeze, especially with the help of multiple sensors. The reversing camera is crisp, but at this price point, the lack of a 360-degree camera view feels like a missed opportunity.

The S3 isn’t covered by its 2WD sibling's maximum five-star ANCAP safety rating but it is well-equipped with safety features all the same.

Safety equipment includes blind-spot monitoring, side exit assist, rear cross-traffic alert, lane departure alert, lane keeping aid, park assist, reversing camera, front/rear parking sensors, forward collision warning, autonomous emergency braking and adaptive cruise control with stop and go function. 

It also has six airbags but misses out on a front centre airbag. None of the driver assist systems are intrusive to daily driving, which I always like.

The rear row has ISOFIX child seat mounts and three top-tether anchor points but only two child seats will fit.

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.

Audi backs the S3 Sportback with a five-year/unlimited kilometre warranty, which is on par with its European rivals. A five-year pre-paid servicing plan is available for $2890 which is cheaper than pay-as-you-go and reasonable for the class.

For those looking to go the extra mile, the 'Audi Advantage' package lets you extend the warranty and capped-price servicing by an additional two years, which represents solid value overall.

Servicing intervals are every 12 months or 15,000km, whichever comes first.