Mercedes-Benz Cle53 vs Audi RS5

What's the difference?

The AMG CLE 53 4Matic+ is formidable yet friendly, ferocious yet refined and fun yet functional.

Yes, the price is edging up to previous 63 flagship levels, and it can become a bit noisy inside, but the four-seater coupe’s specification, speed, sophistication and balance are compelling reasons to consider this if your shortlist also includes an Audi RS5 or BMW M4.

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

Good looking, good to drive, and good to simply sit in, the Audi RS5 range ticks plenty of premium boxes. Whether you can live with the practicality pitfalls of the Coupe is up to you, but if you can't, might I suggest taking a wander over to our RS4 Avant review?

Crisp and aero clean with a handsome fastback silhouette, the CLE’s design is very much in the mould of a modern-day C-Class coupe, but with larger proportions in line with what a contemporary E-Class coupe would look like.

It employs the same architecture as the W205 C-Class and W214 E-Class sedans.

Length, width, height and wheelbase measurements are 4850mm, 1861mm, 1423mm and 2865mm, respectively.

Wearing the AMG suffix means the CLE 53’s body differs in small but important ways to the regular C236 coupes.

The front end, for instance, adopts what Mercedes calls a ‘shark nose’ look, for a suitably more macho visage, with vertical slats in the grille and larger air intakes that ultimately aid cooling and performance.

Meanwhile, the tracks are broader by 61mm at the front and 45mm at the rear, and are matched by mudguards that are 58mm and 75mm wider, respectively. This certainly gives the AMG a hunky appearance.

Speaking of which, further AMG visual titivations include a discernibly larger bulge on the bonnet feeding into (functional) side air vents, along with 20-inch specific alloy wheels, as well as a 'Night Package' I and II, comprising black trim elements all around.

A model-specific wider body kit, lip spoiler, twin pairs of tailpipes, diffuser insert and 20-inch AMG alloy wheels complete the CLE’s gymnasium makeover.

Result? The sleek and muscular body’s extra girth, fatter footwear and darkened highlights make the 53 look as menacing as any AMG forbear, setting a very high bar for the CLE 63 to beat when it eventually surfaces. Great work, Affalterbach!

I defy anyone to describe the RS5, and especially the Coupe, as anything but stunning. Seriously, the near perfect proportions and swept-back styling make it look fast even when it's parked. 

Up front, there's a new-look black-mesh grille that's been given a 3D effect, like it juts out over the road in front it, while the thing headlights have been carved back into the body work like they're been windswept under hard acceleration.

The 20-inch darkened alloys fill the arches, too, with a sharp body crease that runs from the front headlight all the way back to the bulging shoulder lines above the rear tyres accentuating the curves.

Inside, the RS5 is a sea of black Nappa leather and sporty touches, and we particularly like the chunky, flat-bottomed steering wheel, which both looks - and feels - great.

The interior dons a C-Class-in-drag-race do-over. Frankly, the latest – and much more modern-looking – E-Class sedan’s dashboard would have been preferable, however, given its tech-heavy panorama of screens.

For its AMG 53 outing, the cabin boasts an AMG-specific steering wheel with performance mode knobs, a 12.3-inch driver display brandishing a variety of instrumentation styles (including 'Race', 'Sport', 'Classic' and minimal screens) and a multimedia system with track telemetry data within a tablet-style 11.9-inch touchscreen.

There's also electric and heated ‘integral’ sports seats with memory, 'Anthracite' trim elements set against high gloss black inserts, 64 questionable shades of ambient lighting and banging Burmester premium audio with no fewer than 17 speakers.

This is a roomy and well-presented cabin, offering space to spread out up front, a superb driving position, exceptional seat support, quality materials and a decent level of practicality.

Storage is plentiful, most switchgear is within easy reach and the multimedia system is easy to fathom after you’ve taken the time to familiarise yourself with it.

On the other hand, the glossy plastics do not look or feel as elevated as, say, a Porsche’s interior, the air vents feel flimsy to the touch, while trim squeaks were occasionally heard over some rougher road surfaces. It’s not as solid as you’d expect from a Mercedes at this price point.

Rear access is tight due to a slim aperture, as almost all coupes are, but once sat on the contoured rear bucket seats, most adults should find it tolerable unless they’re especially long-legged or over 185cm or so tall.

Further back, a handy 410-litre boot is provided, with a folding rear seat backrest to boost cargo capacity even further, underlying the CLE’s family-friendly packaging.

Note, though, that this is 10L shy of the regular non-AMG models, and smaller than the Audi RS5 (465L) or BMW M4's (440L) boot.

Plus, no spare wheel is available – just a tyre repair kit.

We only tested the Coupe, and I can tell you that the practicality perks on offer largely depend on where you're sitting.

Up front, you're spoiled for room in the two-door Coupe, with the two spacious seats separated by a sizeable centre console that's also home to two cupholders and a variety of cubbies, with extra bottle storage in each of the front doors. 

The back seat, though, is a little, or a lot, tighter, with come acrobatics required to even climb into it, given the Coupe only has two doors. The Sportback offers two more doors, which will surely make the process a little easier. 

The Coupe measures 4723mm in length, 1866mm in width and 1372mm in height, and will deliver a decent 410 litres in luggage space in the boot. The Sportback measures in at 4783mm, 1866mm and 1399mm, and boosts your luggage space to 465 litres.

Either vehicle has your tech needs sorted, with an abundance of USB and power outlets serving both front and backseat riders.

It's available as a Coupe or a Sportback, but either way, the RS5 commands a $150,900 asking price. And that's not chump change, but Audi's performance model does come with a lot of bang for those bucks.

We'll get to the engine and safety stuff in a moment, but in terms of fruit, you'll find 20-inch alloys outside, as well sportier RS body styling, sport brakes, Matrix LED headlights, keyless entry and push-button start and heated mirrors, a sunroof and privacy glass. Inside, there's Nappa leather seats (heated in the front), illuminated door sills, stainless steel pedals and ambient interior lighting.

The tech stuff is handled by a new 10.1-inch central touchscreen that gets both Apple CarPlay and Android Auto, as well as Audi's Virtual Cockpit, which replaces the dials in the driver's binnacle with a digital screen. There's also wireless phone charging, and a killer 19-speaker Bang and Olufsen sound system.

Under the bonnet is a 3.0-litre, in-line, six-cylinder petrol engine. Mercedes-AMG calls it “double charged”, with a single, 1.5-bar turbo augmented with an electric compressor as part of a 48-volt Integrated Starter Generator (or ISG).

The latter makes 17kW of power and 205Nm of torque, for a system total of 330kW at 6100rpm and 560Nm from 2200-5000rpm. Up to 600Nm is possible thanks to a 12-second overboost.

It also recuperates brake energy, offers “almost imperceptible” stop/start fuel saving and allows for an off-throttle, engine-off ‘sailing’ mode.

Not interested in economy? Tipping the scales at a hefty 2015kg the CLE 53’s power-to-weight ratio is a sparkling 164kW/tonne.

All Australian-bound CLE 53s feature the Dynamic Plus Package, with a launch-control function that helps deliver an eager 0-100km/h sprint time of 4.0 seconds. Top speed is governed to 250km/h.

Drive is sent to all four wheels via a nine-speed torque converter automatic transmission. It can simulate double-declutching and offers variable shift modes according to drive settings.

The AWD system, meanwhile, varies torque from 50:50 front/rear to 100 per cent rearwards.

To aid handling, the 4WS system allows the rear wheels to turn in the opposite direction to the fronts, up to 2.5 degrees at up to 100km/h, and 0.7 degrees in unison with the fronts above that speed.

Keeping things in control is a four-link front and five-link independent rear suspension set-up, with AMG ride control featuring adjustable dampers and sports spring rates.

Its a terrific engine, this - a twin-turbo 2.9-litre six-cylinder TFSI that will deliver 331kW at 5700rpm and 600Nm at 1900rpm, sending it thundering to all four wheels (because quattro) via an eight-speed tiptronic automatic.

That's enough, says Audi, to deliver a 0-100km/h sprint time of 3.9 seconds in the Coupe and the Sportback. Which is very, very quick.

Considering the performance on offer, the CLE 53’s 9.6 litres per 100km combined (urban/extra-urban) cycle fuel consumption rating is not too bad. That equates to a carbon-dioxide emissions figure of 219 grams/km. City/highway numbers are 13.2 and 7.6L/100km.

With a 65-litre fuel tank filled with 98 RON premium unleaded petrol, expect an average range of about 685km.

What did we achieve? Driven fairly hard on some of Tasmania’s most beautiful rural roads, the trip meter showed an indicated 9.5L/100km.

The RS5 Coupe will sip a claimed 9.4L/100km on the combined cycle, and emit a claimed 208g/km of Co2. It's fitted with a 58-litre fuel tank. 

The RS5 Coupe will the same 9.4L/100km, but emit 209g/km of Co2.

The new AMG CLE 53 might look much like several of its AMG 63 predecessors, with its brutish stance and bulging bits, but does the German performance coupe drive and feel like an AMG flagship?

With a 63 range-topper (as yet unconfirmed) in the pipeline, that’s a bit of a moot point here, because that will be an altogether harder, faster and more expensive proposition.

But we can tell you that, even without the bellowing V8 of old, the 53 does a damn-fine impression of a charming high-performance GT with the straight-six .

At the heart of the matter is the inline six-cylinder turbo-petrol engine incorporating an electric compressor working the lower revs for punchy off-the-line acceleration and a big twin-scroll gas turbo for more-instantaneous responses further up the rev range.

This makes for an impressively rapid real-world tearaway. Not brutally fast in the way even middling EVs can manage to be nowadays, but still with an urge and character that puts you in the mood for speed.

The steering, meanwhile, is alert, faithful and remarkably reactive, with that 4WS rear end tucking in neatly through the tight turns and twisty bits, allowing a feverish pace with a pleasing grace to be maintained.

Assisting that immersive agility is an almost unshakable sense of grip – no surprise given the variable-torque AWD as well as the late-summer warmth and dryness of the roads we were testing on.

Yet, even beyond these factors, it’s clear the AMG’s immense roadholding provides a reassuring layer of confidence and control.

No opportunity was provided to unleash the CLE 53’s full fury on a track, so we can’t tell you how easily sideways or catchable this thing steers in Race mode with all the safeties turned off, but this coupe’s dynamic bandwidth was obvious during the all-too-few occasions we did manage to fang it.

Another positive is the suspension’s ability to soak up the bumps without too much disturbance inside, allowing for easy and effortless cross-country touring. No truly terrible roads were encountered during our half-day in this civilised beast, though, so we’ll have to reserve our judgement on whether this is the comfortable all-rounder that Mercedes claims it is.

What we can tell you is that there is too much road-noise intrusion inside an otherwise isolated cabin. And we’re no fans of the lack of a spare wheel – an absolute necessity in Australia.

Still, first impressions are very positive.

Its maker calls the CLE 53 the AMG for all occasions, and we cannot argue with this logic.

That there’s a decent wad of thrills and emotion on offer to counterbalance this car’s comparative refinement and civility just proves there is a place for the penultimate version of this series.

With our time behind the wheel limited to the RS5 Coupe, we can only really report on how the two-door feels on the road, but given the prodigious power on offer, it's unlikely the addition of two doors is going to make the Sportback any slower. 

In short, the RS5 is thunderously fast, collecting speed with utter nonchalance thanks to this thick and endless-feeling supply of power unleashed whenever you plant your right foot.

It makes even the most ham-fisted attempts at cornering feel fast as lightning, with the power flow able to make up for every slow entry and exit by simply piling on pace between bends. 

But that's what you expect from an RS model, right? So perhaps more impressive is the RS5's ability to transform back into a relatively sedate urban cruiser when the red mist subsides. The suspension is firm, especially over rough road surfaces, and you do need to be a little careful with the accelerator to avoid that lurching feeling at every green light, but driven calmly, it doubles as a everyday car quite nicely.

Like in the RS4, we did find the gearbox felt a little quick to change at pace, shifting up or down at strange moments on the way into or out of corners, but you can reclaim control via the paddle shifters.

The safety story begins with six (Coupe) or eight (Sportback), and the usual suite of braking and traction aids, but then climbs into the tech-savvy stuff from there.

You get a 360-degree camera, adaptive cruise with stop and go, active lane assist, front and rear parking sensors, AEB with pedestrian detection, rear cross-traffic alert, an exit warning system, blind-spot monitoring and turn assist, which monitors oncoming traffic when making a turn.

It's a lot of gear, and it all contributes to Audi's five-star ANCAP safety rating, awarded in 2017 to the A5 range.

Somewhat average for most mainstream and luxury brands, Mercedes-Benz offers a five-year/unlimited km warranty, with five years of roadside assistance.

Intervals are every 12 months or 25,000km, and while no capped priced servicing is offered, pre-paid three-, four- or five-year service plans are available, ranging from $4190, $5310 and $7760, respectively at the time of publishing.

Audi vehicles are covered by a three-year, unlimited-kilometre warranty, which is feeling more than a little underdone when compared to some competitors.

Services are due every 12 months or 15,000kms, and Audi allows you to pre-pay your service costs for the first five years, at a cost of $3,050.