Mercedes-Benz Cle53 vs Porsche 718

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.

If this is to be the end of the 718 as we know it, then it is an end to be remembered. Porsche has produced something special in the Spyder RS, a sports car that can compete with the 911 on any stretch of road - which is something so few cars can claim. The focus on performance has driven the entire concept of the car, but all the elements work in harmony, with form and function coming together.

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!

As the pinnacle of not only the current 718 range, but potentially the entire combustion engine era of the Boxster, Porsche has pulled out all the stops for the Spyder RS.

This includes major changes to the design, but none are purely for aesthetic reasons and instead are driven by the search for performance; and the fact they make the 718 look tougher, meaner and more purposeful than ever before is just a bonus.

It’s a comprehensive redesign that starts at the bumper with a new front lip spoiler to enhance downforce. Then there’s a pair of NACA ducts on the lightweight bonnet to improve brake cooling without compromising aerodynamic drag. The lightweight front fenders include wheel arch vents to stop any potential for front-end lift at high speeds.

And the fenders aren’t the only component that’s gone on a diet, there’s a lighter exhaust, lighter wheels, lighter bonnet, lighter roof, lighter door panels and even lighter carpets on the inside. All up, the Spyder RS tips the scales at 1400kg, which is 40kg lighter than a standard 718 Boxster.

If it’s still not light enough, you can opt for the optional 'Weissach Package' (which was fitted to our test car), which brings even lighter 20-inch forged magnesium wheels and carbon-fibre reinforced plastic for a range of parts including the front luggage compartment, rollover bars and ducktail spoiler on the Gurney flap – plus some cosmetic enhancements.

And we still haven’t even touched on the biggest design change yet - the rear half of the car. Starting with the roof, which Porsche actually calls a ‘sunshield’ and ‘weather guard’ because it’s a stripped down version of what the brand usually uses, to save weight and let the glorious engine noise into the cabin uninterrupted.

But it’s also necessary because the entire rear engine cover has been redesigned to accommodate the larger engine that Porsche has installed in the Spyder RS, a 4.0-litre six-cylinder instead of the usual turbocharged four-cylinder ‘boxer’ engines.

While the Spyder RS looks great with the roof/sunshield on or off, frankly the removal process is much too complicated and requires repeated viewings of a YouTube tutorial to still get it wrong.

While owners will (likely) eventually get the hang of it, it will always be a clunky and awkward process and that’s just the price of being so focused on performance, which you can accept or not.

Inside that ethos of performance over practicality continues, with sports seats, an Alcantara-wrapped steering wheel and even the previously mentioned lightweight carpet floor mats.

It’s a purposeful, rather than luxurious, cabin, but that perfectly suits the nature of the Spyder RS. Our test drive included several long stretches behind the wheel and at no stage did it feel uncomfortable or impractical, despite its stripped-down design.

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.

One area where the 718 range is starting to show its age quite dramatically is the in-car technology. While Porsche’s native system is relatively user-friendly, the lack of wireless Apple CarPlay or Android Auto in any capacity is deeply out-dated; and was frustrating for this Android using reviewer.

Given the age of the current 718 platform, and the impending arrival of the new model, it’s understandable that the multimedia system didn’t get an overhaul, but for a $350K car it does feel a bit behind the times.

In practical terms the Spyder RS is a bit of a struggle if you plan to go away with it. We managed to get a small suitcase and backpack in the under bonnet storage, but that was at capacity. While the addition of the larger engine removes any meaningful rear storage space.

The bad news is, the Spyder RS costs just over $200,000 more than the entry-level 718 Boxster, which is not a small sum of money. The good news is, for that $200K, Porsche has overhauled the 718 from nose-to-tail and enhanced it in nearly every aspect.

There’s a raft of mechanical changes that we’ll get to later on, to help justify the $334,200, plus on-road costs, asking price, but from a specification perspective there are some notable inclusions. 

For starters it comes with the 'Porsche Communication Management' (PCM) multimedia system, which includes in-built navigation and Bluetooth connectivity, as well as a 110-watt sound system.

But Australian delivered cars get an even higher level of standard equipment than other countries, with LED headlights including 'Porsche Dynamic Light System' (PDLS), cruise control, digital radio, rear 'ParkAssist' with reversing camera, 'Light Design Package', tyre fit set and windscreen with grey top tint, plus a no-cost optional Bose Surround Sound System all included.

It may be $200K more than 718 but compared to a 911, it actually makes a pretty compelling value argument. A 911 Cabriolet Carrera S starts at $342,700 (plus on-road costs), making that Spyder RS $8500 cheaper and a genuine alternative to its ‘big brother’.

Then, when you compare it against similar mid-engine European sports cars, such as the Maserati MC20 (from $510,000) or McLaren Artura (from $477,310) the Porsche looks like a bargain; relatively speaking, of course.

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.

The key stat for the engine is the cylinder count. Gone are the four cylinders and instead it’s a return to Porsche’s iconic flat-six.

Specifically, the same 4.0-litre six that Porsche uses in its 911 GT3, which is a lot of engine to squeeze into the middle of this lightened sports convertible.

In order to keep the 718 in its place (beneath the 911), Porsche has slightly detuned the engine, so it makes 368kW/450Nm (compared to 375kW/460Nm in the 911 GT3), but the German brand has never worried about a kilowatt contest and instead prefers to focus on driveability and the other elements that make a drive great.

To that end the combination of air-intakes next to the headrests and the lightweight stainless steel exhaust (which gets titanium tips on the Weissach Package) helps the Spyder RS sound like a Carrera Cup racing car when you really wind it up to its 9000rpm redline.

Not that the performance isn’t spectacular, though, with Porsche claiming it takes the Spyder RS just 3.4 seconds to run 0-100km/h, only 10.9 seconds to get from 0-200km/h and will hit a top speed of 308km/h.

The engine is paired to a seven-speed dual-clutch auto transmission (or PDK in Porsche-speak) that the company claims has “short-ratios”, but with peak power not hitting until 8400rpm and peak torque from 6750rpm, you don’t have to rush the ratio changes.

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.

Porsche says the 4.0-litre engine in the Spyder RS uses 13.0L/100km, which is a big number for what is a relatively small car. But that engine is highly-tuned and built for performance not efficiency, so it’s something owners will need to accept.

Our test drive included some long highway stretches, as well as some spirited driving and urban commuting, so a good mix across all conditions, and we saw consistent returns around the 15-16L/100km range.

It has a 64-litre tank, which means a theoretical driving range of around 490km, assuming you can hit the official claim.

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.

I’m only giving it a nine out of 10 because perfection is hard for any car to achieve, but the 718 Spyder RS goes as close as any car I’ve driven. This is a masterpiece of modern sports car design, pushing the 718 closer to the 911 than ever before, which is something Porsche has clearly tried to avoid so as to not tarnish the image of its flagship.

But with the 911’s 4.0-litre flat-six in the middle of the 718, plus its more compact dimensions, the lightweight nature of the Spyder RS and the raft of chassis and handling enhancements, this really does leave you questioning ‘do I really need a 911?’

The steering is fantastically direct, the chassis responds to every input with precision and feedback and the braking is strong and consistent. Which helps because that engine is so good it launches you with ferocity and a glorious noise (as good as anything on the market today) whenever you squeeze down on the accelerator.

The highest praise I can give the Spyder RS is not that it was a dream to drive on winding, challenging roads, but that it was just as enjoyable on a trip to the shops or cruising down the freeway. Any drive in this car is a genuine pleasure.

This is another area where the 718 is showing its vintage, with very little in the way of active safety features. There’s the required stability control, as well as airbags for driver and passenger, plus the previously mentioned reversing camera. But that’s it, there’s no autonomous emergency braking, no lane-keeping assist or even adaptive cruise control.

While that may sound shocking to some, there’s never a moment where you feel unsafe in the 718. It feels incredibly stable and responsive on the road, as the onus falls back upon the driver to pay attention and make smart choices.

There’s no ANCAP rating for the 718, or any Porsche, so it is a question of putting your faith into Porsche’s in-house safety measures.

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.

It’s difficult to give the Spyder RS a clear score here because Porsche is cagey on the details. The public dealer websites indicate annual oil maintenance is required, with additional servicing every two years or 15,000km. 

How much that will cost is unclear, as despite the rest of the 718 range having publicly available prices, there were no such details for the Spyder RS (or even its Cayman sibling, the GT4 RS).

For reference, the 'standard' 718 requires oil maintenance ($895) for the first annual service and an inspection ($1500) the year after. Those costs continue to alternate annually out to eight years/120,000km.