Mercedes-Benz CLA-Class vs Aston Martin DB11

What's the difference?

The broadening of the CLA’s scope in this third-gen version puts it a step ahead of key rivals and raises the compact sedan’s prominence in the three-pointed star’s local line-up. Its combination of quality design, performance and efficiency is compelling. And we’ll drive the battery-electric version as soon as it lands.

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

The Aston Martin DB11 AMR is fast, capable and beautiful. It has a unique character and charisma its Italian and German competitors can’t match. That said, some important media and safety-tech features are absent. So, it’s not perfect... just brilliant.

In an impressive feat of aero fine-tuning Mercedes-Benz design and engineering teams have managed to make an already slippery car even more efficient with this new CLA dropping the car’s drag-coefficient from 0.23 to an amazing 0.21.

The sloping, coupe-style profile remains as a CLA signature, complete with frameless doors, flush door handles and aero wheels. 

Hybrid variants sport a conventional radiator grille decorated with a Mercedes-Benz star pattern in chrome and illuminated around its perimeter, while the EVs feature a fully illuminated LED grille display.

And in a move perilously close to branding overkill, the three-pointed star motif is carried into the headlights and tail-lights.

For Latin buffs the interior treatment is minimus extremus, the multi-screen ‘MBUX’ array in the CLA220 we drove dominating the front part of the stripped-back cabin.

From an ergonomic point-of-view, there are no physical controls for ventilation and the only non-digital audio control is on the steering wheel.

But aesthetically, the cabin is clean and simple with touches like ‘floating’ door armrests and a gently rounded front centre console adding to an overall relaxed atmosphere.

For a while there it looked like Aston Martin had fallen into the ‘everything looks the same’ trap, with Ian Callum’s breakthrough DB7 design in the mid-‘90s writing the script for the DB9 that followed, and heavily influencing everything else in the brand’s subsequent portfolio.

But in 2014, Aston’s design chief Marek Reichman sent a message with the DB10 Concept that things were about to change.

James Bond had Q and MI6 to thank for his DB10 company car in Spectre, but real-world Aston Martin customers were soon offered the DB11, which combined the muscularity of Reichman’s work on the ultra-exclusive One-77 from a decade earlier with the swooping, long-nosed proportions of his track-only Vulcan hypercar.

The hallmark of a well executed 2+2 GT is that it looks bigger in photos than it does in reality, and the DB11 is a perfect case in point.

Appearing limo-sized in our accompanying images, the DB11 is in fact 34mm shorter end-to-end than a Ford Mustang, but it’s exactly 34mm wider, and no less than 91mm lower in overall height.

And as any fashionista worth their salt will tell you, dark colours are slimming, and our ‘Onyx Black’ AMR, with gloss black 20-inch forged rims and black ‘Balmoral’ leather interior accentuated the car’s tightly drawn, shrink-wrapped surface treatment.

Signature elements in the shape of a broad, tapering grille, divided side vents, and sharply curved, two-level (smoked) tail-lights clearly identify the DB11 as an Aston Martin.

But the smooth integration of the car’s broad haunches (very One-77), gently tapering turret (optional exposed carbon) and flowing bonnet is masterful and fresh. The dash-to-axle ratio (the distance from the base of the windscreen to the front axle line) is Jaguar E-Type-esque.

And it’s all subtly aero-efficient, For example, the door handles fit flush to the body, the mirror housings double as mini ‘wings’, and the Aston Martin ‘Aeroblade’ system channels air running from carefully crafted openings at the base of the C-pillar, through the rear of the car to generate downforce (with minimal drag) across a lateral vent on the trailing edge of the bootlid. A small flap rises at “high speed” when more stability is required. 

The interior is all business, with a simple instrument binnacle showcasing a central 12.0-inch digital speedo-within-tacho combination, flanked by configurable engine, performance and media read-outs on either side.

Aston has form with squared-off steering wheels and the DB11’s is flat on the bottom and decidedly straight on the sides, affording a clear view of the gauges without compromising purpose. A leather and Alcantara trim combination is (literally) a nice touch. 

The teardrop-shaped centre stack sits in a slightly recessed section (optionally) lined with ‘carbon-fibre twill’, while the form and function of the 8.0-inch multimedia screen at the top will be immediately familiar to current Mercedes-Benz drivers, as the system, including the console mounted rotary controller and touchpad, is sourced from the three-pointed-star brand.

A band of proudly illuminated buttons across the centre includes gear settings for the transmission and a winged stop-starter in the middle. Strange, then, that the plastic knobs on the adjustable air vents look and feel so cheap and bland. This a $400k-plus Aston Martin, where’s the knurled alloy? 

Other highlights include elegant sports seats trimmed in a combination of premium leather and Alcantara. Aston offers various levels of leather and our car’s black ‘Balmoral’ hide is taken from the top shelf.

The key accent colour inside and out on our test example was a screaming lime green, picking out the brake calipers, centre strips on the seats, and contrast stitching throughout the cabin. Sounds awful, looks amazing.  

At just over 4.7 metres long the CLA isn’t a million miles away from full C-Class length and interior space is generous. In fact, there’s an extra 16mm in height and 12mm in width compared to the model this car replaces.

And in terms of storage there are generous bins in the doors with room for bottles and you can place them in one of the two cupholders in the centre console.

There’s the obligatory bin between the seats, a bay here for wireless device charging and a glove box, plus an extra storage bay under the flying buttress-style console.

In the back seat sitting behind the driver’s seat, set for my 183cm position and there’s plenty of footroom as well as acres of legroom and headroom. 

And part of that is the immense panoramic roof which is covered in all kinds of high-tech coatings to make sure all the light comes through but none of the heat.

Then for storage, again you’ve got bins in the doors with room for bottles as well as a pull-down armrest between the seats with three cupholders in it (one espresso-sized) and drive slot in front of them.

There are netted map pockets on the front seatbacks, individual vents which are always welcome and a couple of USB-C charging ports to keep devices charged.

Boot volume is rated at 405 litres (VDA) and the rear seatback folds 40/20/40 to liberate more storage space if required. And there’s a 101L front boot on electric models. 

There’s a hands-free tailgate on the 220 Hybrid. A 1.6- to 1.8-tonne braked trailer towing capacity is handy, but the fact there’s no physical spare tyre isn’t. Your only option in the case of a flat is an inflator and puncture sealant kit. Not good enough.

On one hand it’s hard to describe a supercar like the DB11 as practical when its primary purpose is to go ridiculously fast and look incredibly good in the process.

But this is, in fact, a ‘2+2’ GT, meaning a couple of occasional seats have been squeezed behind the front pair to allow obliging contortionists, or more likely small children, to enjoy the ride.

No one is claiming full four-seat capacity, but it’s a trick that has for decades made cars like Porsche’s 911 a more practical choice for high-end, high-performance sports car buyers.

At 183cm I can verify the chronically limited space back there, without anything in terms of connectivity, specific ventilation or storage options provided. Good luck, kids.

For those up front it’s a very different story. First, the doors are hinged to move up slightly as they swing out, which makes entry and egress a more civilised process than it might otherwise be. That said, those doors are still long, so it pays to pre-plan a workable parking spot, and the high-mounted, forward-facing interior release handles are awkward to use.

Storage runs to a box between the seats, complete with a two-stage electrically controlled lid, housing a pair of cupholders, an oddments space, two USB inputs and an SD card slot. Then, there are slim pockets in the doors, and that’s about it. no glove box or netted pouches. Just a small tray for coins or the key in front of the media controller.

And speaking of the key, it’s another strangely underwhelming part of the DB11 AMR’s presentation. Plain and insubstantial, it looks and feels like the key to an under-$20k budget special, rather than the heavy, polished and glamorous item you’d expect to be subtly placing on the table in your preferred three-hat restaurant.

The carpet-lined boot measures 270 litres, which is enough for some small suitcases and a soft bag or two. In fact, Aston Martin offers a four-piece accessory luggage set “expertly tailored to match the car’s specification.”

Don’t bother looking for a spare wheel, an inflator/repair kit is your only option in the case of a puncture.

Head into the $400k new car zone and expectations are understandably high. The DB11 AMR’s is a continent-crushing GT after all, and you want your fair share of luxury and convenience features to go with its huge performance potential.

For $428,000 (plus on-road costs), as well as the safety and performance tech (of which there’s plenty) covered in later sections, you can expect a lengthy standard features list, including a full-grain leather interior (seats, dash, doors, etc), Alcantara headlining, multi-function ‘Obsidian Black’ leather-trimmed steering wheel, electrically adjustable and heated front seats (with three memory positions), heated/folding exterior mirrors, front and rear parking sensors, and 360-degree ‘Surround View’ parking cameras (including front and rear cameras).

Also standard are cruise control (plus speed limiter), sat nav, dual-zone climate control, the electronic instrument cluster (with mode-specific displays), keyless entry and start, a multi-function trip computer, 400-Watt Aston Martin audio system (with smartphone and USB integration, DAB digital radio and Bluetooth streaming), plus the 8.0-inch touch-control multimedia screen.

Then there are LED headlights, tail-lights and DRLs, ‘dark’ grille, headlight bezels, and tailpipe finishers, 20-inch forged alloy rims, carbon-fibre bonnet vent blades and side strakes, dark anodised brake calipers and, to reinforce the car’s motorsport DNA, the AMR logo sits on the door sill plates and is embossed on the front-seat headrests.

Apple CarPlay and Android Auto functionality is a surprising omission, but our test car more than made up for it with a motherload of optional extras including an exposed carbon-fibre roof panel, roof strakes and rear-view mirror caps, as well as ventilated front seats, the vivid ‘AMR Lime’ brake calipers, plus a ‘Dark Chrome Jewellery Pack’ and ‘Q Satin Twill’ carbon-fibre trim inlays to add presence in the cabin. Along with some other bits and pieces this adds up to an as-tested total of $481,280 (before on-road costs).

Hybrid CLAs combine a 1.5-litre, turbo-petrol, four-cylinder internal-combustion engine (ICE) with a 48-volt electric motor integrated into a new eight-speed dual-clutch transmission with drive going to the front wheels in the CLA180 and 200 and all four in the CLA 220 4Matic.

Mercedes-Benz quotes power and torque outputs for the hybrid’s petrol engine and electric motor individually and the powertrain is able to engage both simultaneously so there are overall output figures, as well. 

The pure-electric models are powered by an in-house developed permanently excited synchronous motor driving the rear wheels through a two-speed transmission, with a second 80kW drive unit added to the CLA350’s front axle for extra performance and all-wheel-drive traction. 

Here’s a panel to explain it all.

The DB11 AMR’s (AE31) 5.2-litre, twin-turbo V12 is an all-alloy unit, tuned to deliver 470kW (up 22kW on the old model) at 6500rpm, while retaining the previous DB11’s 700Nm of maximum torque from 1500rpm all the way to 5000rpm.

As well as dual variable camshaft timing, the engine features a water-to-air intercooler and cylinder deactivation, which allows it to run as a V6 under light loads.

Drive goes to the rear wheels via a ZF-sourced eight-speed (torque converter) auto transaxle with column-mounted paddles, recalibrated for faster shifting in more aggressive Sport and Sport+ modes. A limited-slip differential is standard.

Hybrid CLAs are fitted with a 48-volt, 1.3kWh lithium-ion battery and at urban speeds where less than 20kW is needed, can drive using electric power alone, depending on conditions at speeds up to 100km/h. 

Official combined cycle fuel consumption is quoted at 5.4L/100km for the CLA180 and 200, which equates to a theoretical range of close to 800km, rising to 5.8L/100km for the 220 4Matic for a potential range of around 740km. 

On the roughly 150km launch drive through Melbourne's suburbs and up the Yarra Valley north-east of the city we saw an average of exactly 5.8L/100km in the CLA220.

Electric CLAs are underpinned by a specific new-gen EV platform boasting an 800-volt electric architecture and housing an 58kWh LFP battery in the 200 electric and an 85kWh NMC pack in the 350.

Maximum charge capacity is 320kW for a claimed 10-80 per cent charge time of 22 minutes. 

Claimed energy use for the CLA200 electric is 14.4kWh/100km with a range of 470km while the AWD 350 4Matic sits at 14.9kWh/100km with a range of 663km.

Minimum fuel requirement for the DB11 AMR is 95 RON premium unleaded and you’ll need 78 litres of it to fill the tank.

Claimed economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 11.4L/100km, the big V12 emitting 265g/km of CO2 in the process.

Despite standard stop-start and cylinder deactivation tech, in roughly 300km of city, suburban and freeway running we recorded a figure exactly nothing like that, according to the on-board computer we more than doubled the claimed number on ‘spirited’ drives. The best average figure we saw was still in the high teens.

The CLA220 4Matic was the only option available for the drive program, but for the record, claimed 0-100km/h acceleration times for the hybrid models step down in roughly one second increments - 8.8 seconds for the CLA180, 8.0sec for the 200 and 7.1sec for the 220 4Matic.

Switch to pure-electric power and the CLA200 electric hits the same speed in 7.5 seconds, while the 350 4Matic electric smashes the five second barrier at a properly quick 4.9sec.

Mind you, the 350 4Matic electric weighs about 2.1 tonnes while the hybrids tip the scales at roughly 1.7 tonnes.

There’s plenty of performance in the 220 4Matic but power delivery is not always linear with the powertrain taking half a beat to pick up after you’ve applied some throttle. Which could be the interface between the combustion engine and the electric motor or the turbo on the engine.

The sports steering wheel is grippy and chunky in the hands, and while the steering itself is nice and accurate, road feel is modest. 

There are two settings for steering weight - Comfort and Sport. We tried both, and yes, you can feel where the car’s going but it’s not exactly an intimate connection between your hands and the front tyres on the tarmac.

Speaking of which, standard rubber on the CLA220 is 225/40 Bridgestone Turanza 6 on 19-inch rims and despite those relatively large wheels the car copes well with bumps and thumps and the coarse-chip surface of rural B-roads.  

Suspension consists of a newly-developed strut-based three-link set-up at the front and multi-links at the rear with all of the major components in alloy to minimise unsprung weight.

The car remains composed and balanced through corners and the sports seats in the 220 are grippy, supportive and comfortable. We spent a couple of hours straight behind the wheel without a hint of discomfort.

The CLA’s super-slippery shape manifests itself out on the highway with minimal wind noise at 100km/h and even more. The big tyres are also quiet so the cabin environment remains refined and peaceful.

Brakes on the 220 are vented discs on the front, solid rotors on the rear. And during some pretty challenging downhill twisty sections we leant on them quite heavily. Push hard and they will bite but are not overly aggressive.

The lane-keeping, driver-monitoring and other assistance features are all there, present and accounted for. But more than ticking the box, they work very well.

The media system is driven by a high-capacity unity engine which is often used in gaming and the graphics and animations are super-smooth. And the latest iteration of the Mercedes-Benz media system works nicely across the enormous screens.

All models feature a 360-degree overhead view and a reversing camera and the 11.2-metre turning circle is not small but not vast. The car is easy to manoeuvre and park.

The moment you press the starter the DB11 begins a theatrical performance worthy of the Royal Shakespeare Company.

A high-pitched whine reminiscent of a Formula One air-starter precedes a raucous blast of exhaust noise as the twin-turbo V12 bursts into life. 

It’s spine-tingling, but for those wanting to remain on good terms with their neighbours a quiet-start setting is available.

At this point, rocker buttons on either side of the steering wheel set the tone for what follows. The one on the left, marked with a shock-absorber graphic, allows you to scroll the adaptive damping set-up through Comfort, Sport, and Sport+ settings. Its ‘S’ branded partner on the right facilitates a similar trick with the drivetrain. 

So, throwing urban serenity out the window, we pushed into maximum attack mode for the engine, and by extension the exhaust, selected D and began to enjoy the first act.

A launch-control function is standard, so purely in the interests of science we explored its function and can confirm it works exceptionally well.

Aston claims the DB11 AMR will accelerate from 0-100km/h in just 3.7sec, which is properly fast, and two tenths of a second faster than the standard DB11 it replaces. 

Keep the pedal pinned and two things will happen; you’ll reach a maximum velocity of 334km/h and generate headline news across the country while making your way directly to jail.

With 700Nm available from just 1500rpm, and remaining on tap to 5000rpm, mid-range thrust is monumental and the thundering exhaust note accompanying it is the stuff automotive dreams are made of.

Peak power of 470kW (630hp) takes over at 6500rpm (with the rev ceiling sitting at 7000rpm) and delivery is impressively linear, without a hint of turbo hesitation.  

Aston claims the DB11 AMR will accelerate from 0-100km/h in just 3.7sec, which is properly fast.

The eight-speed auto is simply superb, picking up gears at just the right point and holding on to them for exactly the right amount of time. Select manual mode and the slender shift levers on either side of the steering column allow even more control.

In Sport and Sport+ drivetrain modes the howling exhaust is accompanied by an entertaining array of pops and bangs on up and down shifts. Bravo!

The DB11 AMR is underpinned by an ultra-stiff bonded aluminium chassis, with a double wishbone front/multi-link rear suspension set-up attached to it.

Spring and damper rates are unchanged from the previous DB11 and even on enthusiastic back-road runs we found suspension in Comfort and driveline in Sport+ to be the best combination. Flicking the shocks into Sport+ is best kept for track days. 

Steering is (speed dependent) electrically power-assisted. It’s beautifully progressive, yet pin-sharp with excellent road feel.

The big 20-inch forged alloy rims are shod with high-performance Bridgestone Potenza S007 rubber (255/40 front – 295/35 rear), developed as original equipment for this car and Ferrari’s F12 Berlinetta.

They combine with the 1870kg DB11’s near perfect 51/49 front to rear weight distribution and standard LSD to deliver confidence-inspiring balance and ferocious power down on (quick) corner exit.

Braking is handled by huge (steel) ventilated rotors (400mm front – 360mm rear) clamped by six-piston calipers at the front and four-piston at the rear. We might have put them under decent pressure from time-to-time, but stopping power remained prodigious and the pedal firm.

In the calm of urban traffic the DB11 AMR is civilised, quiet (if you prefer) and comfortable. The sports seats can be adjusted to grip like a vice at speed or provide more breathing room around town, the ergonomics are spot-on, and despite its striking looks, all around vision is surprisingly good.

Overall, driving the DB11 AMR is a special event, flooding the senses and raising the heart rate no matter what the speed.

Big speed demands serious active and passive safety, and the DB11 comes up short on the former.

Yes, there’s ABS, EBD, EBA, traction control, Dynamic Stability Control (DSC), Positive Torque Control (PTC) and Dynamic Torque Vectoring (DTV); even a tyre-pressure monitoring system, and the surround view cameras.

But more recent crash-avoidance tech like active cruise control, bling-spot monitoring, lane-departure warning, rear cross traffic alert, and especially AEB, are nowhere to be seen. Not great.

But if a crash is unavoidable there’s plenty of back-up in the form of dual-stage driver and passenger front airbags, front side (pelvis and thorax) airbags, as well as curtain and knee airbags.

Both rear-seat positions offer top tethers and ISOFIX anchors for baby-capsule and child-seat location.

The DB11 hasn’t been assessed for safety performance by ANCAP or EuroNCAP. 

The CLA is covered by Mercedes-Benz Australia’s five-year/unlimited km warranty with roadside assistance included. On top of that, there’s an eight-year/160,000km warranty on the drive battery in electric models.

That general warranty is in line with Audi, BMW and other premium players, but it’s worth noting an increasing number of brands in the mainstream market are stepping up to longer seven, eight and even 10-year cover.

Hybrid and electric variants have the same 12-month, 25,000km recommended service interval with a five-year schedule for the hybrids equating to an average of $1342 per workshop visit over that period. Reduced mechanical complexity in the EV models lowers that number to $859. But neither is especially cheap in the context of class competitors.

While Kia leads the mainstream market with a seven-year/unlimited km warranty, Aston Martin sits further back with a three-year/unlimited km deal. 

Servicing is recommended every 12 months/16,000km, and an extended, transferable 12-month contract is available, including everything from provision of a taxi/accommodation in the event of breakdown, to coverage of the vehicle at “official Aston Martin organised events.”