Mercedes-Benz CLS-Class vs Audi Q5

What's the difference?

Comfortable when it needs to be and sporty when you want it to be, the CLS 53 is a bit like Mercedes’ Doctor Jekyll and Mr Hyde – or maybe Bruce Banner and the Hulk is a better frame of reference for some.

While it doesn’t excel in any one particular area, its breadth of useability is commendable, but ultimately it might be its all-too-familiar aesthetics that is the biggest letdown.

From the inside, it looks and feels like any other large Mercedes model (not necessarily a criticism), while the exterior – in my opinion – doesn’t go far enough to differentiate it from the CLA.

After all, if you wanted a stylish and sporty sedan, shouldn’t feel special too?

The updated Audi Q5 Sportback TFSI is a strong example of a luxury base-grade SUV, ticking most of the boxes in styling, comfort and features. It may not always outperform its rivals on paper, but it delivers where it counts, offering a refined, practical and engaging package that will satisfy.

Mercedes’ homogenised design is a bit of a double-edged sword, and while the CLS does wear its styling confidently, it probably looks a little too much like the cheaper and much smaller CLA for our tastes.

Both are swoopy four-door coupes from Mercedes-Benz, so of course there will be some similarities, but keen-eyed car spotters will notice some differences.

While the proportions are similar, the longer wheelbase and bonnet line gives the CLS a more mature look, and the extra details found in the head- and tail-lights, and front bumper stand it apart.

The changes to the 2022 version also brings in AMG’s 'Panamericana' front grille, which adds a bit of welcome aggression to the front end.

From the side, the steeply raked roof flows seamlessly into the rear, while the 20-inch wheels fill out the arches well.

All four doors are also frameless, which is always cool to see.

From the rear, quad-exhaust tips hint at the CLS’s sporty intentions, while a prominent rear diffuser and subtle boot lid spoiler also feature.

Inside, the biggest change to the CLS is now the inclusion of the MBUX multimedia system, which keeps it in line with the E-Class, C-Class and other Mercedes models.

AMG sports seats are also fitted, wrapped in Nappa leather and 'Dinamica' fabric upholstery for all pews.

Our test car also came fitted with red contrast stitching and seat belts, adding a racy streak to the CLS cabin.

Have to point out the new steering wheel that comes with the 2022 CLS, though, which mirrors the tiller offered in the new E-Class, and is a step back in terms of functionality.

It looks premium enough thanks to its chunky leather-wrapped rim and gloss black dual-spoke design, but using the buttons, especially when on the move, is difficult and unergonomic.

This design is definitely function over form, and might need a few more revisions to get it right.

Overall, we’d say the CLS is a good-looking car, but does play it a bit too safe with its styling?

The Q5 Sportback is the more attractive sibling when compared to the standard SUV, with a shape that feels more dynamic and sport-oriented. The updated design dials back the sharper creases of the previous model in favour of softer curves, paired with slim matrix LED headlights. The revised 'Singleframe' grille has strong presence and the full-width rear light treatment adds to the Sportback’s visual appeal. Overall, it’s a very handsome vehicle.

Inside, the interior glow-up is immediately noticeable. The large new display takes centre stage in a redesigned dashboard that looks clean and appropriately sophisticated. 

There’s a good mix of materials throughout the cabin, including the beige leather upholstery, although the presence of hard plastics reminds you that this is still a base grade. Even so, the cabin largely hits the right notes for a luxury entry point.

There are a few details that don’t quite land for me. The door-mounted control panel on the driver's side feels busy and a little fiddly to use, and creates an oddly sized and positioned pull handle that just doesn’t feel nice to use. And this is very much a nitpick, but the black stitching on the beige seatbelts catches my eye all the time. None of these are deal-breakers, but they stand out in an otherwise well resolved interior.

Measuring 4994mm long, 1896mm wide, 1425mm tall and with a 2939mm wheelbase, the CLS slots neatly between the E-Class and S-Class in size and positioning.

Up front, occupants are afforded ample room for head, legs and shoulders, while the electronically adjustable seats make it easy to find a comfortable position.

The steering wheel also features a telescoping function – an always appreciated feature – and the expansive glasshouse makes things feel open and airy.

Storage options include a deep door pocket, a cubby found under the armrest, two cupholders and a smartphone tray with wireless charging capabilities.

It’s a different story in the second row, though, as the sloping roofline does noticeably eat away at headroom.

Don’t get me wrong, a six-foot-tall (183cm) adult can still slide in there fine, but the roof is dangerously close to the touching the top of the head.

Leg- and shoulder-room is pretty good in the outboard seats though, while the middle position is compromised by the intrusive transmission tunnel.

In the second row, passengers have access to a bottle holder in the door, a fold-down armrest with cupholders, backseat map pockets and two air vents.

Opening the boot reveals a cavity offering 490 litres of volume, with an aperture wide enough to fit golf clubs or luggage for a weekend getaway for four adults.

The rear seats also fold in a 40/20/40 split fashion, but Mercedes-Benz is yet to detail how much volume is on offer with the rear seats down. And as a traditional sedan, the CLS is less practical than the liftback Audi S7.

Up front, the cabin feels spacious and comfortable, with plush (heated) electric seats, while the driver also benefits from a two-position memory function, which is a plus if the car is shared. My main gripe is the short seat bases, which become noticeable on longer drives.

In the rear, comfort largely holds up, though space is better suited to two adults due to the high transmission tunnel. The 40/20/40 split-folding rear seat is a practical inclusion and helps when juggling passengers and longer items.

Storage is mostly well considered. There’s a generously sized glove box and a couple of useful storage bins in each door, although the centre console is on the smaller side. The dedicated phone tray is a highlight, housing the wireless charging pad, two USB-C ports and a 12-volt socket. Both rows get cupholders and bottle storage, while rear passengers also benefit from USB-C ports, climate control, directional air vents and map pockets. Overall, there’s just enough space and amenity for adults or teens to remain comfortable.

Technology is handled by the updated media display, which features a responsive touchscreen and a menu system that’s easy enough to navigate. Wireless Apple CarPlay and Android Auto are quick to set up, and the built-in satellite navigation is clearly laid out. That said, the near-total absence of physical buttons may frustrate some, with functions like climate control buried within the touchscreen. The number of pop-up disclaimers on start-up also feels excessive.

Boot space is where the Sportback’s sloping roofline has the biggest impact. Load height is limited, and capacity tops out at 515L with all seats in place, making it the smallest in its segment, albeit only by around 10L. I like the deep underfloor storage, along with the cargo cover, net and hands-free powered tailgate. However, the lack of a spare tyre, replaced by a repair kit, is a deal-breaker for me as a country driver, though it may matter less to those with easier access to repair services.

The Audi Q5 Sportback is offered with a choice of petrol or diesel engines, across two grades before stepping up to the more powerful SQ5 variants. For this review, we’re testing the base petrol TFSI grade, which is also the only front-wheel drive option in the line-up.

It carries a before on-road costs price of $84,500 and comes well stocked with features that often sit on the options list with key rivals. Aside from the Genesis GV70 2.5T, which remains hard to beat for standard inclusions, the Q5 Sportback TFSI stands out as one of the better value propositions at this price point.

New for this update is a large panoramic display that combines an 11.9-inch digital instrument cluster with a 14.5-inch central media screen. The system includes built-in satellite navigation, wireless Apple CarPlay and Android Auto and access to the 'Audi Connect' app. The app allows access to remote services like locking/unlocking to car, checking fuel/charge levels, sending navigation routes, car finder and monitoring vehicle status (warnings, last parked location).

Our test car is fitted with optional 'Pearl Beige' leather upholstery, which is a no-cost option. New design elements include a full suite of LED exterior lights, including matrix LED headlights and side puddle lamps.

Comfort is clearly a priority in this grade, with electric and heated front seats featuring lumbar support and a two-position memory function for the driver. Three-zone climate control, a wireless charging pad, multiple USB-C ports and 12-volt sockets, along with a 360-degree camera system round out the major tech highlights.

Practical touches haven’t been overlooked either, with a hands-free powered tailgate, cargo cover and net plus a 40/20/40 split-fold rear seat set-up.

Powering the Mercedes-AMG CLS 53 is a 3.0-litre turbocharged inline six-cylinder engine, punching out 320kW/520Nm to all four wheels via a nine-speed automatic transmission and Merc's '4Matic+' AWD system.

A 48-volt mild-hybrid system, known as 'EQ Boost', is also fitted that serves up to 16kW/250Nm from take-off.

The result is a 0-100km/h acceleration time of 4.5 seconds, keeping it on pace with the likes of the 331kW/600Nm Audi S7 (4.6s) and 390kW/750Nm 250kW/500Nm BMW 840i Gran Coupe (5.2s).

While not as brutish as AMG’s eight-cylinder engine, the straight six strikes a great balance between pace and poise that perfectly suits a model like the CLS 53.

The Q5 Sportback TFSI is front-wheel drive and powered by a 2.0L four-cylinder turbo-petrol engine paired with a mild-hybrid system. Combined outputs sit at 150kW and 340Nm, which places it toward the lower end of the segment when stacked against rivals such as the Genesis GV70 2.5T and Mercedes GLC300 Coupe offering 224kW/422Nm and 190kW/400Nm, respectively.

On the road, however, there’s still plenty on offer for everyday driving, with power delivery feeling smooth and accessible. The seven-speed transmission shifts effortlessly, helping the Q5 Sportback feel refined and easy to live with, even if outright performance isn’t its headline feature.

Official fuel consumption numbers for the CLS 53 are pegged at 9.2 litres per 100km, while we managed an average of 12.0L/100km in our launch drive.

All of our driving was relegated to country back roads and high-trafficked urban areas however, with no consistent freeway driving.

We’ll reserve judgement on how accurate the fuel economy figures are until after we’ve had the car for longer, but the EQ Boost system is designed to help keep consumption down by being able to coast the engine in particular situations.

The Q5 Sportback TFSI has a claimed combined (urban/extra-urban) cycle fuel consumption figure of 5.7L/100km and paired with its 65L fuel tank offers a theoretical driving range of up to 1140km. An impressive result on paper.

After a mix of long highway driving and my usual urban runaround, real-world consumption settled at 5.8L/100km, which is almost spot on.

It also highlights the Q5 Sportback TFSI’s performance/efficiency trade-off. While its outputs are modest relative to some rivals it rewards you with excellent economy in real-world use.

There are certain expectations on a vehicle when it wears a Mercedes badge, namely it should be comfortable to drive while also dripping with the latest tech. And here the large four-door coupe delivers in spades.

Driving the car is smooth, easy and comfortable when in its default drive setting, you can really sink into the CLS and just eat up the miles in comfort.

There are small niggles, like the 20-inch wheels and low-profile tyres (245/35 front and 275/30 rear) throw up a bit too much road noise into the cabin, but for the most part, around town, the CLS is serene, supple and supremely soothing.

However, switch it over to Sport or Sport+ and the steering gets a bit heavier, the throttle response a bit sharper, and the suspension a bit stiffer.

Does it transform the CLS into a sports car? Not quite, but it certainly dials up driving engagement to a level where you can really have some fun.

Though this isn’t a full-fat AMG in the same vein as an E63 S and doesn’t feature the ubiquitous 4.0-litre twin-turbo V8, the CLS 53’s 3.0-litre six-cylinder engine is still plenty potent.

Coming away off the line feels particularly brisk, likely due to the EQ Boost system adding a bit of poke, and even flat-footing it mid-corner delivers a noticeable surge of urgency from the creamy straight six.

However, the best of the CLS 53 experience, in my opinion, is actually the sound, with the exhaust letting off the right sort of pops and crackles in Sport+ mode on overrun.

It’s rude and obnoxious, but also completely surprising coming from the motoring equivalent of a three-piece dress suit – and I love it!

The brakes are also up to task for scrubbing speed, but our relatively brief time with the car was in extremely wet conditions, so the 4Matic+ AWD system was hugely appreciated.

There’s enough power in the base grade to keep things engaging on the open road, whether overtaking or maintaining pace, with a reassuring sense of reserves and smooth, punctual delivery.

Despite the firmer suspension, ride comfort remains high thanks to the newly tuned damping system, which absorbs bumps without sacrificing road feedback. The cabin is quiet at speed and at low speeds the car can switch to its hybrid system for extra refinement.

I’m not a huge fan of the adaptive steering assist, particularly on winding roads, as it can overcorrect at times. Overall, though, the Q5 Sportback delivers enjoyable, sporty dynamics.

Visibility is good from the front and sides, while the rear window is a little on the small side. It’s easy to get accustomed to the car’s dimensions and a clear 360-degree camera view comes standard across all grades, providing a clear view that automatically activates during low-speed manoeuvres. Parking this car is straightforward and stress-free.

The Audi Q5 Sportback carries a fresh maximum five-star ANCAP safety rating from 2025 testing. It comes with nine airbags, including side-chest airbags for both rows which is a standout feature, as these are often limited to the front seats.

The safety equipment suite is strong, featuring lane departure warning, lane keeping assist, side exit warning, blind-spot monitoring, traffic sign recognition, dusk-sensing LED headlights and emergency call capability. There’s also front collision warning, rear cross-traffic alert with assist and rear turn-assist. Adaptive cruise control is generally well-calibrated, though it can occasionally slow for vehicles outside your lane.

Autonomous emergency braking covers cars, pedestrians, cyclists, motorcyclists, and backover assist which is operational between 5.0 and 250km/h. Child safety is supported with two ISOFIX mounts and three top-tether anchor points, although only two seats fit comfortably.

Like all new Mercedes-Benz models sold in 2021, the CLS 53 comes with a five-year/unlimited kilometre warranty with roadside assist over that period.

This outclasses the assurance period offered by BMW, Porsche and Audi (three-year/unlimited kilometre), and matches that available from Jaguar, Genesis and Lexus, who recently upgraded their offering.

Scheduled service intervals are every 12 months or 25,000km, whichever occurs first.

The first three planned services will set buyers back $3150, broken down as $700, $1100 and $1350 apiece.

The Q5 Sportback comes with Audi’s five-year/unlimited km warranty, which also includes complimentary roadside assistance - all fairly standard at this end of the market. A five-year pre-paid servicing plan is available for $3520, which is cheaper than the pay-as-you-go option, though it’s not the most competitive compared with some rivals. For instance, BMW offers the same coverage for $2475, while the Genesis comes with complimentary servicing.

You can also extend the service period by two years with the 'Audi Advantage Package' for an additional cost. Services are spaced at sensible intervals, every 12 months or 15,000km, whichever comes first, making maintenance straightforward and predictable.